Sync to iPad suddenly stopped

[#1]

Hello!

I have Lightroom classic and CC that is synced to my Android phone and iPad. I have several collections synced but suddenly this evening when I was going to edit on my iPad all my collections except one where gone!

On  my android phone everything is still there but it won't sync to my iPad... Sync is enabeled  on every device and I can't find anything in any settings that I can change to get my photos synced to my iPad again.

Please, is there anyone who knows what problem this is and what I can do to get it to sync all my collections again to the iPad again?

Thank you!

[#2]

Hello!

I have Lightroom classic and CC that is synced to my Android phone and iPad. I have several collections synced but suddenly this evening when I was going to edit on my iPad all my collections except one where gone!

On  my android phone everything is still there but it won't sync to my iPad... Sync is enabeled  on every device and I can't find anything in any settings that I can change to get my photos synced to my iPad again.

Please, is there anyone who knows what problem this is and what I can do to get it to sync all my collections again to the iPad again?

Thank you!