BTW, that's OK that there is no mods in 0.14.2 version! Because I know how to mod Baldi's Basics Plus! I'm also using Baldi's Basics Plus Mod Manager, but if it exports incorrectly assets or they are not there, then I'm using File Explorer to REPLACE FILES.
Well, if the mod using LZMA, then Mod Manager can't export it and original Windows Extractor can say that error occured with replacing one of the files. So I use WinRar to extract all the files.