Update app.py

app.py

@@ -922,7 +922,7 @@ def img_to_image(image, prompt, neg_prompt, strength, steps, guidance_scale,
     """
     try:
         if image is None:
-            return None
+            return None, None, None, None, None
 
         import time, random
         start_time = time.time()
@@ -933,6 +933,8 @@ def img_to_image(image, prompt, neg_prompt, strength, steps, guidance_scale,
         print(f"📊 Einstellungen: Strength: {strength}, Steps: {steps}, Guidance: {guidance_scale}")
         print(f"📝 Prompt: {prompt}")
         print(f"🚫 Negativ-Prompt: {neg_prompt}")
+
+        final_image = None # Variable wird initiiert!
         
         # ===== AUTOMATISCHEN NEGATIV-PROMPT GENERIEREN =====
         auto_negatives = auto_negative_prompt(prompt)
@@ -1313,6 +1315,13 @@ def img_to_image(image, prompt, neg_prompt, strength, steps, guidance_scale,
         print(f"❌ Fehler in img_to_image: {e}")
         import traceback
         traceback.print_exc()
+
+        # Fallback: Return das Originalbild oder ein leeres Bild
+        if image is not None:
+            fallback_image = image.copy()
+        else:
+            fallback_image = Image.new("RGB", (512, 512), color="gray")
+        
         return final_image, None, None, None, None