diff --git a/anisearch/AniSearch.py b/anisearch/AniSearch.py
index a0e4e83..2b6c223 100644
--- a/anisearch/AniSearch.py
+++ b/anisearch/AniSearch.py
@@ -48,11 +48,8 @@ def set_timefmt(self, timefmt: str) -> None:
         Args:
         - timefmt: Time format string
         """
-        try:
-            time.strftime(timefmt, time.localtime())
-            self._timefmt = timefmt
-        except ValueError:
-            raise ValueError(f"Invalid time format: {timefmt}")
+        time.strftime(timefmt, time.localtime())
+        self._timefmt = timefmt
 
     def reset(self) -> None:
         """Reset the search object."""
@@ -113,11 +110,7 @@ def size_format(self, unit: str = 'MB') -> None:
         if not self.if_selected:
             raise ValueError("No item selected. Please use select() method first.")
 
-        try:
-            self.anime.size_format(unit)
-        except Exception as e:
-            log.error(f"Size format conversion failed: {str(e)}")
-            raise
+        self.anime.size_format(unit)
 
     def save_csv(self, filename: str) -> None:
         """
@@ -145,6 +138,7 @@ def save_csv(self, filename: str) -> None:
             log.error(f"Failed to save CSV: {str(e)}")
             raise
 
+
 if __name__ == "__main__":
     import doctest
 
diff --git a/anisearch/__init__.py b/anisearch/__init__.py
index dbc2537..74c2cd1 100644
--- a/anisearch/__init__.py
+++ b/anisearch/__init__.py
@@ -1,3 +1,4 @@
+import importlib
 import logging
 
 LOG_FORMAT = "%(asctime)s %(levelname)s %(message)s"
@@ -26,4 +27,4 @@ def setup_logger(name: str = "global", level: int = logging.DEBUG) -> logging.Lo
 
 log = setup_logger()
 
-eval("from .AniSearch import AniSearch")
+AniSearch = importlib.import_module('.AniSearch', package=__name__).AniSearch
diff --git a/anisearch/plugins/Anime.py b/anisearch/plugins/Anime.py
index 74e4b11..c87f063 100644
--- a/anisearch/plugins/Anime.py
+++ b/anisearch/plugins/Anime.py
@@ -20,7 +20,6 @@
     'TIB': 1099511627776
 }
 
-
 class Anime:
     def __init__(self, time: str, title: str, size: str, magnet: str):
         """
@@ -43,18 +42,12 @@ def size_format(self, unit: str = 'MB') -> None:
 
         Args:
             unit (str, optional): The target unit. Defaults to 'MB'.
-
-        Raises:
-            ValueError: If the size string is invalid or an invalid storage unit is provided.
         """
-        try:
-            value, pre_unit = self.extract_value_and_unit(self.size)
+        value, pre_unit = self.extract_value_and_unit(self.size)
+        if pre_unit is not None and value is not None:
             if pre_unit.upper() != unit.upper():
                 value = self.convert_byte(value, pre_unit, unit)
                 self.size = f"{value}{unit}"
-        except ValueError as e:
-            log.critical(f"Size format error: {e}")
-            raise
 
     @staticmethod
     def convert_byte(value: float, from_unit: str, to_unit: str) -> float:
@@ -68,18 +61,15 @@ def convert_byte(value: float, from_unit: str, to_unit: str) -> float:
 
         Returns:
             float: The converted value.
-
-        Raises:
-            ValueError: If an invalid storage unit is provided.
         """
         try:
             from_factor = conversion_factors[from_unit.upper()]
             to_factor = conversion_factors[to_unit.upper()]
+            return round(value * (from_factor / to_factor), 2)
         except KeyError as e:
             invalid_unit = e.args[0] if e.args else 'unknown'
-            raise ValueError(f"Convert: invalid storage unit '{invalid_unit}'") from e
-
-        return round(value * (from_factor / to_factor), 2)
+            log.error(f"Convert: invalid storage unit '{invalid_unit}'")
+            return None
 
     @staticmethod
     def extract_value_and_unit(size: str) -> Tuple[float, str]:
@@ -91,9 +81,6 @@ def extract_value_and_unit(size: str) -> Tuple[float, str]:
 
         Returns:
             Tuple[float, str]: The extracted value and unit.
-
-        Raises:
-            ValueError: If the size string is invalid.
         """
         match = size_pattern.match(size)
 
@@ -102,7 +89,8 @@ def extract_value_and_unit(size: str) -> Tuple[float, str]:
             unit = match.group(2)
             return value, unit
         else:
-            raise ValueError(f"Extract: invalid size '{size}'")
+            log.error(f"Extract: invalid size '{size}'")
+            return None, None
 
     def __eq__(self, value: object) -> bool:
         """
@@ -118,9 +106,12 @@ def __eq__(self, value: object) -> bool:
             return False
 
         try:
-            return magnet_hash_pattern.search(self.magnet).group(1).lower() == magnet_hash_pattern.search(value.magnet).group(1).lower()
+            return (
+                    magnet_hash_pattern.search(self.magnet).group(1).lower() ==
+                    magnet_hash_pattern.search(value.magnet).group(1).lower()
+            )
         except AttributeError:
-            log.critical("Magnet hash extraction failed.")
+            log.error("Magnet hash extraction failed.")
             return False
 
     def __ne__(self, other) -> bool:
@@ -145,9 +136,9 @@ def __str__(self) -> str:
         try:
             hash_value = magnet_hash_pattern.search(self.magnet).group(1)
         except AttributeError:
-            log.critical("Magnet hash extraction failed.")
+            log.error("Magnet hash extraction failed.")
             hash_value = "unknown"
-        return f"Anime'{self.title}' with hash {hash_value}"
+        return f"Anime '{self.title}' with hash {hash_value}"
 
     def __repr__(self) -> str:
         """
diff --git a/setup.py b/setup.py
index b0242d4..6080755 100644
--- a/setup.py
+++ b/setup.py
@@ -8,7 +8,7 @@
 
 setup(
     name='Anisearch-lib',
-    version='1.3.3',
+    version='1.3.4',
     packages=find_packages(exclude=['tests*']),
     install_requires=requirements,
     entry_points={