Unable to start X server

[s1ko]

Hi, I got a raspberry pi 3 which doesn't start X server but she works without errors with kodi-xbmc (called by terminal).
Xorg.log:
$this->bbcode_second_pass_code('', '
[ 2453.664] (EE)
[ 2453.671] (EE) Backtrace:
[ 2453.678] (EE)
[ 2453.684] (EE) Segmentation fault at address 0x77c47a5d
[ 2453.690] (EE)
Fatal server error:
[ 2453.703] (EE) Caught signal 11 (Segmentation fault). Server aborting
[ 2453.709] (EE)
[ 2453.716] (EE)
Please consult the The X.Org Foundation support
at http://wiki.x.org
for help.
[ 2453.742] (EE) Please also check the log file at "/var/log/Xorg.0.log" for additional information.
[ 2453.749] (EE)
[ 2453.756] (EE) Server terminated with error (1). Closing log file.
')

I have the problem after that the power went out... I belive it is a silly thing but i dont know how to found or tracer the error.