I started to play some custom zombies today and first game i jump into had random stuff in the map which wasnt meant to be in. I also did try a different map and still the same problem. the longer i play with it like it the worse it gets. anyone can help me out? first time doing this. Also this is what popping up. https://gyazo.com/cf00c8f50bdd00193eb2eac77e227e36

thanks