[RESEND] lxde error

[Byung-Hee HWANG (황병희) <soyeomul@doraji.xyz>]

i'm new to debian. yesterday i did install debian on chromebook. i get
some error when i start lxde. attached file with error [1]. how can i
resolve it? 

$ lsb_release -d
Description:    Debian GNU/Linux 8.11 (jessie)

$ uname -a
Linux localhost 3.18.0-14597-g61c88fee5b70 #1 SMP PREEMPT Thu Jul 13
12:01:12 PDT 2017 aarch64 GNU/Linux

$ dpkg -l | grep lxde
ii  lxde                                  6                             
ii  lxde-common                           0.99.0-1                
ii  lxde-core                             6              
ii  lxde-icon-theme                       0.5.1-1        
ii  task-lxde-desktop                     3.31+deb8u1               

thanks,

[1]
https://gitlab.com/soyeomul/stuff/raw/master/jessie-birch/20180802_214248.jpg