I have suggestion, check that you have the actual name in all the ini files in your server files properly and have set the ini files up properly if you have then check your mir2 client folder for the same problem.....
Also if you recently added something to the server, remove it and test, it may be causing ur problem mate (btw theres like 20 different posts of ppl with same problem suggest read they before posting or you may get banned (^_^)