CRIT - [agent] Communication failed: timed outCRIT, [piggyback] Successfully processed

Hello,

No, I query an ESXi, I have the option " Normal Checkmk agent, or special agent if configured"

But I did not set up this supervision, and there may be some errors.

The all other metrics are good (OK) (CPU, Disk, Interface…), I only have a problem with service “check_MK”.
So maybe I have configuration error, but I don’t know where.

Thank you.