It kind of looks like your notes are doubled up – Try deleting the ones at 8:1:00 for all difficulties and then add thgem back manually to see if the error for 8:1:00 goes away
You are about to leave Rhythm Gaming World and access the external songs DB. While no song or file sold for commercially available videogames is hosted there and only fan generated content is allowed, Rhythm Gaming World has no direct control over the database and no files are hosted here. Alright, we had to made you aware of this, now you can visit the database!
