Server not showing in modded list?

Hi, I have had my server up for about two weeks - but today for some RANDOM reason its not showing up in the modded list. It has always showed up before exept now - I have checked everything I could think of and what not but it still not showing up? any sugestions?

 

Have you checked the community list?
Always possible that your server got blacklisted because it was doing something "naughty".

 

Where can check if there is a server in the blacklist?