iTunes cannot add certain files?

Hello everyone

So I go and do the usual drag and drop my music files from the desktop into iTunes. Waiting for them to copy into iTunes I google to try and find the artwork

I go back into iTunes and realise nothing has happened. My files didn't copy. I try and it again, drag my mp3 files into iTunes but nothing happens.

Ive checked all my permissions and everything is correct and the files open and play perfectly in QuickTime. It is only this album that isn't copying.
Ive tried several other albums and they copy just fine.
Ive tried File>Add to Library but that doesn't work either.

Any solutions?

Nothing haha

File>Add to Library... select my files press enter then nothing.

iTunes just stays the same and the files I want aren't added