Suddenly...one third of my tracks are 'unavailable' using Qobuz

Hi all, I am now thinking this might be a common occurrence with any of the music services but I went to my favourite playlist I created using Qobuz and suddenly 20 tracks out of the 63 tracks I have added is now unavailable? I guess Qobuz is like popular video streaming services where movies come and go. That is disappointing :(

I am in Canada by the way. Wishing everyone the best from beautiful Nova Scotia! 

Bill