diff --git a/bot/__init__.py b/bot/__init__.py
index e1fbe3e..2f280c3 100644
--- a/bot/__init__.py
+++ b/bot/__init__.py
@@ -1,6 +1,6 @@
 import discord
 
-__version__ = '1.0.3'
+__version__ = '1.0.4'
 __author__ = 'Kartoniarz'
 
 
diff --git a/bot/utils/helpers.py b/bot/utils/helpers.py
index ac96ea4..d1d1664 100644
--- a/bot/utils/helpers.py
+++ b/bot/utils/helpers.py
@@ -5,7 +5,10 @@ import hashlib
 
 def rotate_downloads(downloads_dir: str):
     MAX_FILES = os.getenv('MAX_FILES')
+    if not MAX_FILES.isnumeric():
+        return {'status': 'error', 'message': f'MAX_FILES: {MAX_FILES} - nie jest cyfrą.'}
 
+    MAX_FILES = int(MAX_FILES)
     files = [
         os.path.join(downloads_dir, f)
         for f in os.listdir(downloads_dir)
@@ -23,7 +26,7 @@ def rotate_downloads(downloads_dir: str):
 def download_video(yt_url: str) -> dict:
     MAX_DUR = os.getenv('MAX_DURATION')
     if not MAX_DUR.isnumeric():
-        return {'status': 'error', 'message': f'MAX_DUR: {MAX_DUR} nie jest cyfrą.'}
+        return {'status': 'error', 'message': f'MAX_DUR: {MAX_DUR} - nie jest cyfrą.'}
 
     MAX_DUR = int(MAX_DUR)
     BASE_DIR = os.path.dirname(os.path.abspath(__file__))