IMMEDIATELY FIX THE PORTAL

I cant play any portal match because in the host section there is a server that active and i didnt even create it, it is someone else server. And i cant take it down. And all of my created modes not loading in !!!!! FIX IT QUICKLY. It says some error line when i want to delete it....... Dice i saw this problem days ago, what kind of developer team are you.... others fixing problems immediately.....