Update app.py

app.py

@@ -37,7 +37,7 @@ async def generate_image_async(prompt, aspect_ratio):
                 if "output" in response_data:
                     return f"testing:{response_data["output"]}"
                 elif "error" in response_data:
-                    return f"Error: {response_data['error']}"
+                    return response_data['error']
                 else:
                     return "Error: Unexpected response from GLIF API."