Good evening, I noticed on my server appears on gametraker it off, even if not

proof is on you can see here: http://www.redirectecs.info/cs.legionarii.ro/ , which is the cause .. ?

I am not able to scan this server on HLSW (hlsw.org). You can confirm this for yourself. Please look back to when this started to show as offline to determine which change you made caused this. The most common issue has to do with the firewall, so ensure that the respective ports are open and that GT can scan your server.