From my battle to our war, MMORPG MIR4.
Greetings, This is MIR4.
Our team is well aware of the issue of getting unexpected closure of the game client when Clan members try to cooperate in Clan tech, and we are currently checking on this issue.
We sincerely apologize for the inconvenience and we will do our best to fix this issue to provide stable service.
Thank you.