Sound just dissappeared.

Here's something to note before you read this:

I have not upgraded to MacOS Big Sur 11.7.5 as of the time of writing this, which is also a problem in its own right, but I think this is unrelated.

I'm not that responsible of a tech user, but this is just a bit too far, and I'm kind of freaking out. In the user files of my Mac, there is an AB tester, by a company called SocaLabs. When I used it in Audacity (it doesn't show up in Logic the way it set it up, I don't really know why), at some point it just busted my sound output. No outputs work and the sound meter in System Preferences does absolutely nothing... It just clicked, and poof! Please be wary of the SocaLabs AB Tester... (Oh yeah, and I'm a bit too scared to reboot my computer.)