Beside some good/expensive players have also lost coins and found a few players on quick sell section. 

Contacted support 2 days ago (when I found out) and today received a message in game saying that my missing content was in packs under my club.

However that was not the case, neither my lost players nor coins were there and in quick sell sections players are still there. 

I Don.t know if I shall be more patient or ask them about the ingame message...