arc crash

i played arc mage on one of my charachters witch was working fine. but one ay i logged in and my game crashed everytime i go in to the charackter i always had a few seconds i tried to de eqiup all items witch stopped the problem after some testing i noticed that everything was fine accept when i put a arc skill gem in my body armor (cloak of defiens) witch emidietly chrashed the game ; ps charackter : lvl 85 scion named : nowestackaura.