This is the first time I'm getting the error on SteemMonsters and what error it is. I logged in to play a bit this morning and I get the above. My last quest is loaded (that I completed) but with the error message. If I click claim I get the following:
So, with no daily quest today all I can do is get beaten time and again. I will still try to reach Gold III, but the way the things are going I'll drop out of Silver I.
In other news, I've bought this card to improve my water deck:
Wish me luck!