Mediabay not showing in Cubase 12

My Cubase Pro 12.00.52 no longer shows mediabay stuff. It shows the main folders but when I click on folders VST instruments, VST Effects, Loops and Samples etc… nothing shows up, it is empty.
I though the update 12.00.52 would fix it but it has not. I reinstalled some stuff using Download Assistant and no positive result. I am trying to avoid reinstalling Cubase, if reinstall Cubase will I have to reinstall all my 3rd party plugins too? What can I do???