Telegram_bot activation fails

Hi,

I fail in activating the telegram bot.

I read the documentation, watched two youtube-videos about that, but after all it just does not run.

I got the API-ID from the telegram BotFather, I got my chat-ID from the get-id-bot and configured the configuration.yaml.

But checking the notify-service I do not get an error message, but also no telegram-message.

I also add screenshots here.

Any idea, what my error is?

Maybe these additional information might help.

This service is succesful:
HA - send message

But this message fails.

No error message, but also no message sent: