fix a bug

Rodin.py

@@ -144,7 +144,7 @@ class Generator:
             if 'error' in preprocess_response:
                 print("Error in image preprocessing:", preprocess_response['error'])
                 raise RuntimeError
-            elif preprocess_response.get("statusCode") == "401":
+            elif preprocess_response.get("statusCode") == 401:
                 print("Token expired, refreshing token...")
                 _, self.token = login(self.user_id, self.password)
                 continue