Log :
{"@type":"updateServiceNotification","type":"API_64BIT_LOGIN_APP_OUTDATED_144","content":{"@type":"messageText","text":{"@type":"formattedText","text":"You are using an outdated app that is no longer supported. To access your messages, please update your app to the latest version.","entities":[{"@type":"textEntity","offset":91,"length":37,"type":{"@type":"textEntityTypeBold"}}]}}}
{"@type":"error","code":406,"message":"UPDATE_APP_TO_LOGIN"}
Yes, it's a known error due to latest telegram changes, if you're a registered user you can download the latest telegram version from your account. The latest version is 1.7.9 and currently you can download for windows and osx, I'll update the other personalities on next days.