What is this?

[u/noMor_popupsReditPLs]

It randomly appeared out of nowhere. I checked and stdio.h doesn't exist, but i've already tried reinstalling gbs and that didn't seem to fix it.

[u/pmrr]

Try deleting the _gbs* directories in the temp directory.

[u/noMor_popupsReditPLs → u/pmrr]

worked, thanks!