Update app.py

app.py

@@ -275,7 +275,7 @@ async def upload_image_to_freeimagehost(image_path: Path, file_type: str = 'png'
 
 async def upload_image(file_path: Path | str, file_type: str = 'png') -> str | None:
     file_path = Path(file_path)
-    return await upload_image_to_freeimagehost(file_path, file_type) or upload_image_to_imgbb(file_path, file_type)
+    return await upload_image_to_freeimagehost(file_path, file_type) or await upload_image_to_imgbb(file_path, file_type)
 
 
 async def process_image(old_url: str, image_path: Path, convert: bool) -> tuple[str, Path]: