Can't play a song on all my devices

Hi,

i bought a Pink Floyd album a few weeks ago and i've been having problem to play one of the song in the album.

Every single time i clicked on it, it pops up a little cube saying that i need to authorise the computer, and i follow the instruction but still it doesn't work

the window pops out every time even tho i have already authorised the computer a few times.

Even on my iPhone, i couldn't play it with the ones i download on it, but all the other songs are fine.

Who can tell me what's going on, and how can i fix it?

thanks