Failed unmounting cores directory/ failed unmounting storage

I installed Lakka on a PC with no operating system. I added no-intro roms to the roms folder. When I start and exit some games it goes to the Lakka logo and freezes. I can still access the Lakka files through the network while on stuck the Lakka logo. If I restart the computer I see the messages "Failed unmounting cores directory and failed unmounting storage. I have reinstalled Lakka several times. Would I have less problems if I installed on a rasberry pi instead?