DX 11 crash error

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Time: 2:45pm gtm+1
Frequency: Constant
World name: Cerberus
Character name: Fei Soulstar
Retainer name:
NPC name:
Monster name:
Class/Level: Samurai 56
Party or solo: Solo
In-game time: 1h46 pm
Area and coordinates: South Shroud - Quarrymill
Housing:
Steps:
1. Logged off in the area
2. Can't log back in, constant DX11 error

http://i.imgur.com/TUT4OK0.png

Sidenote: the DX11 error also happen maybe.. 75% of the time if you AFK for a little while (10mn or so) happened pretty much everytime i had
to afk for a lil moment.