Hast du auch eine Nachricht an deine neue Chatgruppe geschickt?
https://sbcode.net/grafana/telegram-bot hat geschrieben:...
Then send a message to the group, so that the group has at least 1 message.
...
Troubleshooting
If the getUpdates url doesn't return a node containing a group with an id, then
- remove your bot from the group,
- and then re add your bot to the group,
- then send a message to the group again,
- then try the getUpdates url again.