Update app.py

app.py

@@ -96,7 +96,7 @@ MASK_DIR =  "Masks"
 CSV_LOG_PATH =  "image_log.csv"
 
 # Create directories
-for directory in [UPLOAD_DIR, MASK_DIR, PATCHES_DIR, PRED_PATCHES_DIR]:
+for directory in [UPLOAD_DIR, MASK_DIR]:
     os.makedirs(directory, exist_ok=True)