Main menu Flashing red and Right Shift not Working

[Devilone666]

So when i load in to aristois 1.14.4-1.16.5
My main menu starts flashing red and when i load into a server the menu with hacks it doesnt pop up and it just doesnt show IRC too even tho i know i have chat mute off. It also crashes on time to time.

What could i do to stop this happening?

[Dyiing]

Make sure you only load the donor client with your donor account