Currently I have a dayz mod server 94.23.37.227:2302

query port 2431

It states that the server is up and im currently in it now.

I also added the server to gametracker states that its up but then
it states thats it down. Doesnt make any sense...It finds the server basically but states that its down...

Possible fix to remove it from gametracker? ...

When you turn the server back online, you can claim it and then delete it on:

http://www.gametracker.com/server_info/94.23.37.227:2302/manage/

If not, you'll need to wait for it to be removed for extended downtime. Either way, it shouldn't be a problem. You can just unfavorite/unbookmark it and there will be no harm with it there.