cant install plugin

i decided to try 5.8, but i couldnt access the fab plugin from there, even tho the installed plugins said i could, and no matter what install to engine doesnt work
when i try to uninstall it give me error IS-EO-plat-nofnd:win-2

I installed Unreal Engine 5.8, and the Fab plugin was installed automatically. However, after restarting, it disappeared and I cannot reinstall it. I have tried clearing the cache, as well as completely uninstalling and reinstalling the engine. The exact same thing happened again: Fab disappeared after the reboot and won’t install. I have Windows 11