In the city "Dark Fastness" is an NPC named "Yamka". (14,11)
He gives you the quest "Problems of Outland Tumulus".
If you accept the quest, the error comes and you have not accepted the quest.
If you talk to the NPC again and want to accept the quest, the error repeats.
"[S] System :
Validation failed, please contact GM
Server: Arcadia Line 1
Player ID: 65103
Device: iPhone 4
iOS Version: 6.1.2
Thank you for your help.