[Trying to claim Excalibur Umbra from the foundry results in "unknown error"/ the sacrifice quest progstop [Fixed]]

For real no answer and problem still here... Wtf is going on here guys i cant do nothing in this game until i will complete this quest. Why the fck support do nothing ?? 2 days gone lol

[Trying to claim Excalibur Umbra from the foundry results in "unknown error"/ the sacrifice quest progstop [Fixed]]

There is two more posts on forum here with this problem. First posted 24 hours ago so we keep waiting until any1 from administration will see this posts 

[Trying to claim Excalibur Umbra from the foundry results in "unknown error"/ the sacrifice quest progstop [Fixed]]

Same thing... Im sorry but... Is this normal that people cant continue playing because of this error? I mean 15 hours past after the error appear...