Hello all,
After a short contact with the auto-run system arthor Zuqiang, we've detected where the problem locates:

sda2: write failed, user block limit reached.
Segmentation fault (core dumped)
sda2: write failed, user block limit reached.

Maybe the 7Timer! space limit reached. I've contact the admin for this problem. Anything new will be post here.
Quanzhi