Update utils.py

utils.py

@@ -105,7 +105,7 @@ def generate_novelai_image(
         return None, {'message': 'NAI response timeout'}
 
     # Process the response
-    if response.headers.get('Content-Type') == 'application/x-zip-compressed':
+    if response.headers.get('Content-Type') == 'binary/octet-stream':
         zipfile_in_memory = io.BytesIO(response.content)
         with zipfile.ZipFile(zipfile_in_memory, 'r') as zip_ref:
             file_names = zip_ref.namelist()