Weird Infinite Yield + Lag Spikes

In every game I join I get those messages
also I’ve noticed suddens lag spikes ingame that never occured before the errors.
anybody can help on this?

You cant really access core gui from in game. Id suggest putting all modules in a folder in the script storage for easy access

Its happening in multiple games + I’m lag spiking on every roblox game (even on 1 graphic)