Telegram Binding not working

I have installed the telegram bindung in OH 2.5. In Paper UI have added the token and id in the thing configuration.
My following test rule is not working. No message is send to telegram.
Does anyone know what could be the cause?

rule "Test"
Item Test changed
val telegramAction = getActions("telegram","telegram:telegramBot:f78b7abc")
telegramAction.sendTelegram("Test Rule1")

You used


in the thing definition ?
Have you done a trial via the browser using the bot token to send a test message ?

Yess, the test works fine!

well, at least I provide an additional parameter (the chat ID or whatever it’s called):

telegramAction.sendTelegram(CHATID, “my message”)

War eine Testinstallation. Die hab ich neu aufgesetzt und jetzt funktionierts genau wie am Anfang eingegeben. Ich kann leider nicht mehr feststellen, woran es gelegen hat.

Enable trace level logs and see what is happening instead of guessing. It would be a good idea to try with the chatID as suggested above as the binding allows the chatIDs to be locked to only 1 direction with <> arrows.

I found the following warning in the log file:
2021-01-14 16:27:55.367 [WARN ] [ng.telegram.internal.TelegramHandler] - Telegram exception: GetUpdates failed with error_code 409 Conflict: terminated by other getUpdates request; make sure that only one bot instance is running
It is updatet about every 2 seconds.
Any solution to get rid of this warning?