I saw a setup with Zabbix monitoring a Veeam installation that stopped working from the moment where veeam was updated to version 13. The "Get Metrics" Request got into an error:

Request failed with status code 500: {"errorCode":"ServiceUnavailable","message":"Job type HyperVBackup is not supported in this API version.","title":"Job type HyperVBackup is not supported in this API version.","status":500} 

I found out that the query for the endpoint `api/v1/jobs/states` causes the error. So one solution is to comment out that line in the script. When i updated the api version header to use version 1.3-rev1 instead it worked again even with the endpoint enabled.

Maybe it could be useful to define the used api version by some parameter?