Netchannel: failed reading message net_SetConVar

Netchannel: failed reading message net_SetConVar from ipofdedi:27015.

This is the problem I’m having for more then a week now: people are stuck on retrieving server info and are getting this error message in console. I have to changelevel or restart server to fix this, however this is very annoying (especially because it’s a RP server, and no not DarkRP).

I tried already to update my server by using -verify_all, however it didn’t fix it. Someone has a solution for this?

Thanks in advance