I'm not super experienced with the Armoury Crate on RoG laptops but one thing I know, its really tied down to core functions, you would lose a lot of features if you uninstall it.
Keep calm.
AC can be a very buggy app sometimes but its getting better. Report the issue on RoG community forums, every bug I reported got fixed, not right away because it can take time for them to tackle the problem, normally, your are not the only one having it.
There is also an uninstaller tool, that removes everything before a fresh install. Try it.
I use AC on my computer, every part I have is RoG, from board, storage, keyboard, DAC, gpu, monitor and so on. Also use it on my RoG phone. I know the "beast" lol.
Good luck
The Englishman