i was on a server and it was a super secret setting on it was 3d and now im stuck on it and i asked the owner what to do and he said"just restart you client and i dont now how to do that help me please

Put the summary of the bug you're having here

What I expected to happen was...:
Describe what you thought should happen here

What actually happened was...:
Describe what happened here

Steps to Reproduce:
1. Put a step by step guide on how to trigger the bug here
2. go to super secret setting till you get to the one you want
3. and click and if you keep it there for to long it will stay that way till you restart you client