Update app.py

app.py

@@ -182,9 +182,9 @@ async def create_album(
             try:
                 # Create a blank image with the file content as text
                 img = Image.new('RGB', (200, 200), color=(73, 109, 137))
-                img.save("temp.png")
-                with open("temp.png", "rb") as img_file:
-                    file_content = img_file.read()
+                img_byte_arr = io.BytesIO()
+                img.save(img_byte_arr, format='PNG')
+                file_content = img_byte_arr.getvalue()
                 file.content_type = "image/png"
             except Exception as e:
                 print(f"Error converting file to PNG: {str(e)}")