Answer format error 'lines' is null

[log1c]

Closing this thread in favor of the previously created one:

Answer format error:'lines' is null

Hello, I am creating a monitoring server on ubuntu with icinga2 and i downloaded nsclient++ on a windows client to monitor with check_nt. But my problem is that when i use a command i got an error message: UNKNOWN: Answer format error: ‘lines’ is Null.l the command i got is: [image] and the issue is the same when i want to test the command in the plugins directory, i’m asking your help, this is blocking me for days and i don’t really know whet to do. Thank you.

Please continue there.