fix

main.py

@@ -72,6 +72,7 @@ async def check_updates():
                                     file.truncate(0)
                                     composite.save(file, format='JPEG')
                                     file.seek(0)
+                                    file.name = 'file.jpg'
                                 await bot.send_photo(int(os.environ['SEND_CHAT']),
                                                      file,
                                                      caption=caption)