Figuring out Errors and Warnings in MinimServer Log

[LXXLXX]

And one more question:

I get a lot of warnings of the form

Warning: ID3v2 TCON frame has non-numeric genre index 03.07 at offset 20377 in file........

This only appeared when I made another change

All my GENRE tags are of such a form from MUSICHI. Why is there a problem in the MP3 files with the TCON tag