Update app.py

app.py

@@ -23,7 +23,7 @@ checkpoints = {
 # Ensure model and scheduler are initialized in GPU-enabled function
 if torch.cuda.is_available():
     pipe = StableDiffusionXLPipeline.from_pretrained(base, torch_dtype=torch.float16, variant="fp16").to("cuda")
-else
+else:
     pipe = StableDiffusionXLPipeline.from_pretrained(base, torch_dtype=torch.float16, variant="fp16")
 
 if SAFETY_CHECKER: