Telegram failed to send alert notifications

Hello guys,
after simple configuration of my telegram notification I got this error.
image

and in the log I see this:

t=2021-05-26T09:03:55+0300 lvl=info msg=“Sending telegram notification” logger=alerting.notifier.telegram chat_id=-*** bot_token=bot****** apiAction=sendMessage
t=2021-05-26T09:03:55+0300 lvl=eror msg=“Failed to send webhook” logger=alerting.notifier.telegram error=“Webhook response status 404 Not Found” webhook=Telegram_Notification
t=2021-05-26T09:03:55+0300 lvl=eror msg=“failed to send notification” logger=alerting.notifier uid= error=“Webhook response status 404 Not Found”
t=2021-05-26T09:03:55+0300 lvl=eror msg=“failed to send notification” logger=alerting.notifier uid= error=“Webhook response status 404 Not Found”
t=2021-05-26T09:03:55+0300 lvl=eror msg=“Failed to send alert notifications” logger=context userId=1 orgId=1 uname=admin error=“Webhook response status 404 Not Found” remote_addr=213.145.103.137
t=2021-05-26T09:03:55+0300 lvl=eror msg=“Request Completed” logger=context userId=1 orgId=1 uname=admin method=POST path=/api/alert-notifications/test status=500 remote_addr=213.145.103.137 time_ms=197 size=48 referer=http://94.26.36.3:8080/alerting/notification/3/edit

Some idea where can be the problem? I`m using Grafana version v7.5.7 (91de51771c) with InfluxDB everything is installed on Oracle Linux 8 with stopped SeLinux.

And SELinux is off?

What happens if you try to communicate directly with the telegram API from your Oracle machine using cURL?

SeLinux is offand the curl is working perfectly. Is something in the grafana from my understanding it can’t find the endpoint.