Client lua stack leak

Since the update everyone gets this crash error when they join! https://gyazo.com/56d1f8e5d54742a9e3b0e74261160b24

I really need help i have absolutely no idea what is causing it, thanks in advance.

Remove Cake Anti-Cheat.

My server dont have CAC and I have the same problem.

Does it work with no addons on your server?

Ah thanks guys, i was at college while this happened so i missed the warning about CAC, all fixed!