UPDATE: Diggers, the issue is already fixed! Yet again, we apologize for the inconvenience this may have caused.
many of you can currently see blank windows instead of the special gem offer after opening the special Black Friday GEM JAM on a mobile app (applies to all mobile devices) :
If you have encountered such situation in your game, we would like to inform you that it is not necessary to contact our support anymore - we are aware of this unpleasant situation and our tech team is working on a fix.
We apologize for the inconvenience this may have caused.
In the meantime, the Black Friday GEM JAM was stopped - it does not appear in any player's game. As soon as it is fixed, it will appear again. Bear with us!
We will inform you also here in this article as soon as the issue is fixed. Yet again, please, accept our sincere apologies!
Diggy's Adventure support team