SUGGESTION TO EVERY BSPLAYER V2 USER
After you install BSplayer make a backup of the media library database file (located in
C:\Program Files|Webteh\BSplayerPro\bslib\BSPMLIB.DAT)
Since there isn't a Clear media library button, if something goes wrong with the MediaLibrary database, the only way you have to fix it (and in some cases the only way you have to make BSplayer still works) is to replace the modified BSPMLIB.DAT file with the one you backup-ed after the BSplayer installation
@ adicoto
Probably if you reinstall BSplayer by replacing that file you'll be able to use it again 