[HELP] Grafana Alert telegram image not found when Direct link rendered image success

[ndt1092]

• What Grafana version and what operating system are you using?
  V8.0.6 with ubuntu 20.04

• What are you trying to achieve?
  Show image in alert telegram

• How are you trying to achieve it?
  install Direct link rendered image successful

• What happened?
  When alert message not show image, only link png. which is not a live image
  

• What did you expect to happen?
  Show image on alert telegram

• Can you copy/paste the configuration(s) that you are having problems with?
  No

• Did you receive any errors in the Grafana UI or in related logs? If so, please tell us exactly what they were.
  No

• Did you follow any online instructions? If so, what is the URL?
  yes, but it doesn’t work