No Mod Search Bar

hey i followed a youtube video did everything right literally just bought beat sabre on steam like an hour or 2 a go played on it so mod assistant could find it then clicked and installed the mods but i dont get a search bar with all modded map songs i get a message saying something like its not word for word the mods you have installed there is no button needed or something like that do i have to revert it back to an earlier version