When i play on sassilization servers such as deathrun, i cant see fire. Help?

[ilikewaffl3s]

When i first played on sassilization's deathrun server i could see fire and everything else, but now i cant see fire all of a sudden and ive tried deleting my addons, restarting gmod after ticking all the games in the extension tab and reinstalling gmod but it wont work.