diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 9eda730..00b1761 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -1,4 +1,4 @@
-name: Tests
+name: Tests and Linting
 
 on: 
   push:
diff --git a/deepface/DeepFace.py b/deepface/DeepFace.py
index 4bda0a2..9edd0be 100644
--- a/deepface/DeepFace.py
+++ b/deepface/DeepFace.py
@@ -30,6 +30,8 @@ from deepface.extendedmodels import Age, Gender, Race, Emotion
 from deepface.commons import functions, realtime, distance as dst
 from deepface.commons.logger import Logger
 
+# pylint: disable=no-else-raise
+
 logger = Logger(module="DeepFace")
 
 # -----------------------------------
@@ -465,8 +467,16 @@ def find(
     file_name = f"representations_{model_name}.pkl"
     file_name = file_name.replace("-", "_").lower()
 
-    if path.exists(db_path + "/" + file_name):
+    df_cols = [
+        "identity",
+        f"{model_name}_representation",
+        "target_x",
+        "target_y",
+        "target_w",
+        "target_h",
+    ]
 
+    if path.exists(db_path + "/" + file_name):
         if not silent:
             logger.warn(
                 f"Representations for images in {db_path} folder were previously stored"
@@ -477,6 +487,12 @@ def find(
         with open(f"{db_path}/{file_name}", "rb") as f:
             representations = pickle.load(f)
 
+            if len(representations) > 0 and len(representations[0]) != len(df_cols):
+                raise ValueError(
+                    f"Seems existing {db_path}/{file_name} is out-of-the-date."
+                    "Delete it and re-run."
+                )
+
         if not silent:
             logger.info(f"There are {len(representations)} representations found in {file_name}")
 
@@ -523,7 +539,7 @@ def find(
                 align=align,
             )
 
-            for img_content, _, _ in img_objs:
+            for img_content, img_region, _ in img_objs:
                 embedding_obj = represent(
                     img_path=img_content,
                     model_name=model_name,
@@ -538,6 +554,10 @@ def find(
                 instance = []
                 instance.append(employee)
                 instance.append(img_representation)
+                instance.append(img_region["x"])
+                instance.append(img_region["y"])
+                instance.append(img_region["w"])
+                instance.append(img_region["h"])
                 representations.append(instance)
 
         # -------------------------------
@@ -553,10 +573,13 @@ def find(
 
     # ----------------------------
     # now, we got representations for facial database
-    df = pd.DataFrame(representations, columns=["identity", f"{model_name}_representation"])
+    df = pd.DataFrame(
+        representations,
+        columns=df_cols,
+    )
 
     # img path might have more than once face
-    target_objs = functions.extract_faces(
+    source_objs = functions.extract_faces(
         img=img_path,
         target_size=target_size,
         detector_backend=detector_backend,
@@ -567,9 +590,9 @@ def find(
 
     resp_obj = []
 
-    for target_img, target_region, _ in target_objs:
+    for source_img, source_region, _ in source_objs:
         target_embedding_obj = represent(
-            img_path=target_img,
+            img_path=source_img,
             model_name=model_name,
             enforce_detection=enforce_detection,
             detector_backend="skip",
@@ -580,10 +603,10 @@ def find(
         target_representation = target_embedding_obj[0]["embedding"]
 
         result_df = df.copy()  # df will be filtered in each img
-        result_df["source_x"] = target_region["x"]
-        result_df["source_y"] = target_region["y"]
-        result_df["source_w"] = target_region["w"]
-        result_df["source_h"] = target_region["h"]
+        result_df["source_x"] = source_region["x"]
+        result_df["source_y"] = source_region["y"]
+        result_df["source_w"] = source_region["w"]
+        result_df["source_h"] = source_region["h"]
 
         distances = []
         for index, instance in df.iterrows():
@@ -815,6 +838,7 @@ def extract_faces(
     """
 
     resp_objs = []
+
     img_objs = functions.extract_faces(
         img=img_path,
         target_size=target_size,
diff --git a/deepface/commons/functions.py b/deepface/commons/functions.py
index 299bd03..e368def 100644
--- a/deepface/commons/functions.py
+++ b/deepface/commons/functions.py
@@ -16,6 +16,8 @@ from deepface.commons.logger import Logger
 
 logger = Logger(module="commons.functions")
 
+# pylint: disable=no-else-raise
+
 # --------------------------------------------------
 # configurations of dependencies
 
@@ -73,49 +75,52 @@ def loadBase64Img(uri):
     """
     encoded_data = uri.split(",")[1]
     nparr = np.fromstring(base64.b64decode(encoded_data), np.uint8)
-    img = cv2.imdecode(nparr, cv2.IMREAD_COLOR)
-    return img
+    img_bgr = cv2.imdecode(nparr, cv2.IMREAD_COLOR)
+    # img_rgb = cv2.cvtColor(img_bgr, cv2.COLOR_BGR2RGB)
+    return img_bgr
 
 
 def load_image(img):
-    """Load image from path, url, base64 or numpy array.
-
+    """
+    Load image from path, url, base64 or numpy array.
     Args:
         img: a path, url, base64 or numpy array.
-
-    Raises:
-        ValueError: if the image path does not exist.
-
     Returns:
-        numpy array: the loaded image.
+        image (numpy array): the loaded image in BGR format
+        image name (str): image name itself
     """
+
     # The image is already a numpy array
     if type(img).__module__ == np.__name__:
-        return img
+        return img, None
 
     # The image is a base64 string
     if img.startswith("data:image/"):
-        return loadBase64Img(img)
+        return loadBase64Img(img), None
 
     # The image is a url
     if img.startswith("http"):
-        return np.array(Image.open(requests.get(img, stream=True, timeout=60).raw).convert("RGB"))[
-            :, :, ::-1
-        ]
+        return (
+            np.array(Image.open(requests.get(img, stream=True, timeout=60).raw).convert("BGR"))[
+                :, :, ::-1
+            ],
+            # return url as image name
+            img,
+        )
 
     # The image is a path
     if os.path.isfile(img) is not True:
         raise ValueError(f"Confirm that {img} exists")
 
-    # For reading images with unicode names
-    with open(img, "rb") as img_f:
-        chunk = img_f.read()
-        chunk_arr = np.frombuffer(chunk, dtype=np.uint8)
-        img = cv2.imdecode(chunk_arr, cv2.IMREAD_COLOR)
-    return img
+    # image must be a file on the system then
 
-    # This causes troubles when reading files with non english names
-    # return cv2.imread(img)
+    # image name must have english characters
+    if img.isascii() is False:
+        raise ValueError(f"Input image must not have non-english characters - {img}")
+
+    img_obj_bgr = cv2.imread(img)
+    # img_obj_rgb = cv2.cvtColor(img_obj_bgr, cv2.COLOR_BGR2RGB)
+    return img_obj_bgr, img
 
 
 # --------------------------------------------------
@@ -152,7 +157,7 @@ def extract_faces(
     extracted_faces = []
 
     # img might be path, base64 or numpy array. Convert it to numpy whatever it is.
-    img = load_image(img)
+    img, img_name = load_image(img)
     img_region = [0, 0, img.shape[1], img.shape[0]]
 
     if detector_backend == "skip":
@@ -163,10 +168,17 @@ def extract_faces(
 
     # in case of no face found
     if len(face_objs) == 0 and enforce_detection is True:
-        raise ValueError(
-            "Face could not be detected. Please confirm that the picture is a face photo "
-            + "or consider to set enforce_detection param to False."
-        )
+        if img_name is not None:
+            raise ValueError(
+                f"Face could not be detected in {img_name}."
+                "Please confirm that the picture is a face photo "
+                "or consider to set enforce_detection param to False."
+            )
+        else:
+            raise ValueError(
+                "Face could not be detected. Please confirm that the picture is a face photo "
+                "or consider to set enforce_detection param to False."
+            )
 
     if len(face_objs) == 0 and enforce_detection is False:
         face_objs = [(img, img_region, 0)]
@@ -177,39 +189,38 @@ def extract_faces(
                 current_img = cv2.cvtColor(current_img, cv2.COLOR_BGR2GRAY)
 
             # resize and padding
-            if current_img.shape[0] > 0 and current_img.shape[1] > 0:
-                factor_0 = target_size[0] / current_img.shape[0]
-                factor_1 = target_size[1] / current_img.shape[1]
-                factor = min(factor_0, factor_1)
+            factor_0 = target_size[0] / current_img.shape[0]
+            factor_1 = target_size[1] / current_img.shape[1]
+            factor = min(factor_0, factor_1)
 
-                dsize = (
-                    int(current_img.shape[1] * factor),
-                    int(current_img.shape[0] * factor),
+            dsize = (
+                int(current_img.shape[1] * factor),
+                int(current_img.shape[0] * factor),
+            )
+            current_img = cv2.resize(current_img, dsize)
+
+            diff_0 = target_size[0] - current_img.shape[0]
+            diff_1 = target_size[1] - current_img.shape[1]
+            if grayscale is False:
+                # Put the base image in the middle of the padded image
+                current_img = np.pad(
+                    current_img,
+                    (
+                        (diff_0 // 2, diff_0 - diff_0 // 2),
+                        (diff_1 // 2, diff_1 - diff_1 // 2),
+                        (0, 0),
+                    ),
+                    "constant",
+                )
+            else:
+                current_img = np.pad(
+                    current_img,
+                    (
+                        (diff_0 // 2, diff_0 - diff_0 // 2),
+                        (diff_1 // 2, diff_1 - diff_1 // 2),
+                    ),
+                    "constant",
                 )
-                current_img = cv2.resize(current_img, dsize)
-
-                diff_0 = target_size[0] - current_img.shape[0]
-                diff_1 = target_size[1] - current_img.shape[1]
-                if grayscale is False:
-                    # Put the base image in the middle of the padded image
-                    current_img = np.pad(
-                        current_img,
-                        (
-                            (diff_0 // 2, diff_0 - diff_0 // 2),
-                            (diff_1 // 2, diff_1 - diff_1 // 2),
-                            (0, 0),
-                        ),
-                        "constant",
-                    )
-                else:
-                    current_img = np.pad(
-                        current_img,
-                        (
-                            (diff_0 // 2, diff_0 - diff_0 // 2),
-                            (diff_1 // 2, diff_1 - diff_1 // 2),
-                        ),
-                        "constant",
-                    )
 
             # double check: if target image is not still the same size with target.
             if current_img.shape[0:2] != target_size:
diff --git a/deepface/commons/logger.py b/deepface/commons/logger.py
index b556430..5d9b759 100644
--- a/deepface/commons/logger.py
+++ b/deepface/commons/logger.py
@@ -1,5 +1,6 @@
 import os
 import logging
+from datetime import datetime
 
 # pylint: disable=broad-except
 class Logger:
@@ -17,7 +18,7 @@ class Logger:
 
     def info(self, message):
         if self.log_level <= logging.INFO:
-            self.dump_log(message)
+            self.dump_log(f"{message}")
 
     def debug(self, message):
         if self.log_level <= logging.DEBUG:
@@ -36,4 +37,4 @@ class Logger:
             self.dump_log(f"💥 {message}")
 
     def dump_log(self, message):
-        print(message)
+        print(f"{str(datetime.now())[2:-7]} - {message}")
diff --git a/deepface/detectors/DlibWrapper.py b/deepface/detectors/DlibWrapper.py
index f1b9616..6d98b10 100644
--- a/deepface/detectors/DlibWrapper.py
+++ b/deepface/detectors/DlibWrapper.py
@@ -6,11 +6,19 @@ from deepface.commons.logger import Logger
 
 logger = Logger(module="detectors.DlibWrapper")
 
+
 def build_model():
 
     home = functions.get_deepface_home()
 
-    import dlib  # this requirement is not a must that's why imported here
+    # this is not a must dependency. do not import it in the global level.
+    try:
+        import dlib
+    except ModuleNotFoundError as e:
+        raise ImportError(
+            "Dlib is an optional detector, ensure the library is installed."
+            "Please install using 'pip install dlib' "
+        ) from e
 
     # check required file exists in the home/.deepface/weights folder
     if os.path.isfile(home + "/.deepface/weights/shape_predictor_5_face_landmarks.dat") != True:
@@ -40,7 +48,14 @@ def build_model():
 
 def detect_face(detector, img, align=True):
 
-    import dlib  # this requirement is not a must that's why imported here
+    # this is not a must dependency. do not import it in the global level.
+    try:
+        import dlib
+    except ModuleNotFoundError as e:
+        raise ImportError(
+            "Dlib is an optional detector, ensure the library is installed."
+            "Please install using 'pip install dlib' "
+        ) from e
 
     resp = []
 
diff --git a/deepface/detectors/FastMtcnnWrapper.py b/deepface/detectors/FastMtcnnWrapper.py
index 20461a3..5e25941 100644
--- a/deepface/detectors/FastMtcnnWrapper.py
+++ b/deepface/detectors/FastMtcnnWrapper.py
@@ -4,23 +4,27 @@ from deepface.detectors import FaceDetector
 # Link -> https://github.com/timesler/facenet-pytorch
 # Examples https://www.kaggle.com/timesler/guide-to-mtcnn-in-facenet-pytorch
 
+
 def build_model():
-    # Optional dependency
+    # this is not a must dependency. do not import it in the global level.
     try:
         from facenet_pytorch import MTCNN as fast_mtcnn
     except ModuleNotFoundError as e:
-        raise ImportError("This is an optional detector, ensure the library is installed. \
-              Please install using 'pip install facenet-pytorch' ") from e
+        raise ImportError(
+            "FastMtcnn is an optional detector, ensure the library is installed."
+            "Please install using 'pip install facenet-pytorch' "
+        ) from e
 
-
-    face_detector = fast_mtcnn(image_size=160,
-              thresholds=[0.6, 0.7, 0.7], # MTCNN thresholds
-              post_process=True,
-              device='cpu',
-              select_largest=False, # return result in descending order
-        )
+    face_detector = fast_mtcnn(
+        image_size=160,
+        thresholds=[0.6, 0.7, 0.7],  # MTCNN thresholds
+        post_process=True,
+        device="cpu",
+        select_largest=False,  # return result in descending order
+    )
     return face_detector
 
+
 def xyxy_to_xywh(xyxy):
     """
     Convert xyxy format to xywh format.
@@ -30,6 +34,7 @@ def xyxy_to_xywh(xyxy):
     h = xyxy[3] - y + 1
     return [x, y, w, h]
 
+
 def detect_face(face_detector, img, align=True):
 
     resp = []
@@ -38,7 +43,9 @@ def detect_face(face_detector, img, align=True):
     img_region = [0, 0, img.shape[1], img.shape[0]]
 
     img_rgb = cv2.cvtColor(img, cv2.COLOR_BGR2RGB)  # mtcnn expects RGB but OpenCV read BGR
-    detections = face_detector.detect(img_rgb, landmarks=True) # returns boundingbox, prob, landmark
+    detections = face_detector.detect(
+        img_rgb, landmarks=True
+    )  # returns boundingbox, prob, landmark
     if len(detections[0]) > 0:
 
         for detection in zip(*detections):
diff --git a/deepface/detectors/MediapipeWrapper.py b/deepface/detectors/MediapipeWrapper.py
index 5753485..332be4f 100644
--- a/deepface/detectors/MediapipeWrapper.py
+++ b/deepface/detectors/MediapipeWrapper.py
@@ -4,7 +4,14 @@ from deepface.detectors import FaceDetector
 
 
 def build_model():
-    import mediapipe as mp  # this is not a must dependency. do not import it in the global level.
+    # this is not a must dependency. do not import it in the global level.
+    try:
+        import mediapipe as mp
+    except ModuleNotFoundError as e:
+        raise ImportError(
+            "MediaPipe is an optional detector, ensure the library is installed."
+            "Please install using 'pip install mediapipe' "
+        ) from e
 
     mp_face_detection = mp.solutions.face_detection
     face_detection = mp_face_detection.FaceDetection(min_detection_confidence=0.7)
diff --git a/deepface/detectors/YoloWrapper.py b/deepface/detectors/YoloWrapper.py
index a96011b..e6e67de 100644
--- a/deepface/detectors/YoloWrapper.py
+++ b/deepface/detectors/YoloWrapper.py
@@ -20,9 +20,16 @@ def build_model():
     import os
 
     # Import the Ultralytics YOLO model
-    from ultralytics import YOLO
+    try:
+        from ultralytics import YOLO
+    except ModuleNotFoundError as e:
+        raise ImportError(
+            "Yolo is an optional detector, ensure the library is installed. \
+              Please install using 'pip install ultralytics' "
+        ) from e
 
     from deepface.commons.functions import get_deepface_home
+
     weight_path = f"{get_deepface_home()}{PATH}"
 
     # Download the model's weights if they don't exist
@@ -38,8 +45,7 @@ def detect_face(face_detector, img, align=False):
     resp = []
 
     # Detect faces
-    results = face_detector.predict(
-        img, verbose=False, show=False, conf=0.25)[0]
+    results = face_detector.predict(img, verbose=False, show=False, conf=0.25)[0]
 
     # For each face, extract the bounding box, the landmarks and confidence
     for result in results:
@@ -48,7 +54,7 @@ def detect_face(face_detector, img, align=False):
         confidence = result.boxes.conf.tolist()[0]
 
         x, y, w, h = int(x - w / 2), int(y - h / 2), int(w), int(h)
-        detected_face = img[y: y + h, x: x + w].copy()
+        detected_face = img[y : y + h, x : x + w].copy()
 
         if align:
             # Tuple of x,y and confidence for left eye
@@ -57,8 +63,10 @@ def detect_face(face_detector, img, align=False):
             right_eye = result.keypoints.xy[0][1], result.keypoints.conf[0][1]
 
             # Check the landmarks confidence before alignment
-            if (left_eye[1] > LANDMARKS_CONFIDENCE_THRESHOLD and
-                    right_eye[1] > LANDMARKS_CONFIDENCE_THRESHOLD):
+            if (
+                left_eye[1] > LANDMARKS_CONFIDENCE_THRESHOLD
+                and right_eye[1] > LANDMARKS_CONFIDENCE_THRESHOLD
+            ):
                 detected_face = FaceDetector.alignment_procedure(
                     detected_face, left_eye[0].cpu(), right_eye[0].cpu()
                 )
diff --git a/setup.py b/setup.py
index 2055363..d483a9b 100644
--- a/setup.py
+++ b/setup.py
@@ -8,7 +8,7 @@ with open("requirements.txt", "r", encoding="utf-8") as f:
 
 setuptools.setup(
     name="deepface",
-    version="0.0.79",
+    version="0.0.80",
     author="Sefik Ilkin Serengil",
     author_email="serengil@gmail.com",
     description="A Lightweight Face Recognition and Facial Attribute Analysis Framework (Age, Gender, Emotion, Race) for Python",
diff --git a/tests/unit_tests.py b/tests/unit_tests.py
index ffa8ae9..57d71c5 100644
--- a/tests/unit_tests.py
+++ b/tests/unit_tests.py
@@ -9,7 +9,7 @@ from deepface.commons.logger import Logger
 
 logger = Logger()
 
-# pylint: disable=consider-iterating-dictionary
+# pylint: disable=consider-iterating-dictionary,broad-except
 
 logger.info("-----------------------------------------")
 
@@ -45,7 +45,7 @@ def evaluate(condition):
 # ------------------------------------------------
 
 detectors = ["opencv", "mtcnn"]
-models = ["VGG-Face", "Facenet", "ArcFace"]
+models = ["VGG-Face", "Facenet", "Facenet512", "ArcFace"]
 metrics = ["cosine", "euclidean", "euclidean_l2"]
 
 dataset = [