AvastUI.exe Error

[system]

Hello السلام عليكم ورحمه الله وبركاته
•about problem•
I update the avast antivirus in 28/11/2013 and it macke error
•Screen of problem•

http://im42.gulfup.com/iT5Oo.jpg

Thank I wait the solve

[system]

if any one can help me tell me fast and thank you