I might add that none of the paths have been modified from the initial install of GameEx. Once you have an installed emulator, you have to tell GameEx where to find its ROMs, Snaps, etc. You may have MAME running OK inside of MAME, but as you can see from the paths that display "does not exist" or "no files found" that you have not performed any configuration of GameEx to point to where the files are. As with any frontend, you must tell it where to look if the files are not in the default location that it is looking. You may wish to review the documentation for setup, etc. located here first. If you need some help along the way, we are here for you. Welcome!