Update app.py

app.py

@@ -252,8 +252,7 @@ def infer(
 ):
     if any([a in prompt for a in bad_words]):
         return None, "## <span style='color:orangered'>ERROR: Invalid prompt / 不適切なプロンプト </span>", None, seed    
-    yield None, None, None, seed
-    yield infer_impl(prompt, style, lang, negative_prompt, seed, randomize_seed, ar, guidance_scale, num_inference_steps, progress)
+    return infer_impl(prompt, style, lang, negative_prompt, seed, randomize_seed, ar, guidance_scale, num_inference_steps, progress)
 
 
 # Seafoam theme based on