채점 중 예외가 발생했습니다.
익셉션: Unexpected monitor result:
{'returncode': 1, 'stderr': "lxc-execute: utils.c: safe_mount: 1284 No such file or directory - Mount of 'proc' onto '/usr/lib/x86_64-linux-gnu/lxc/proc' failed\nlxc-execute: conf.c: tmp_proc_mount: 4121 No such file or directory - failed to mount /proc in the container.\nlxc-execute: conf.c: lxc_setup: 4337 failed to LSM mount proc for 'sandbox-tmpaHWh8C'\nlxc-execute: start.c: do_start: 717 failed to setup the container\nlxc-execute: sync.c: __sync_wait: 51 invalid sequence number 1. expected 2\nlxc-execute: start.c: __lxc_start: 1121 failed to spawn 'sandbox-tmpaHWh8C'\n", 'stdout': ''}
cmdline: python monitor.py -o .stdout -e .stderr -m 547356672 -t 11 "gcc -O3 submission.c -pedantic-errors -lm -std=c11"
(empty stdout)
스택 트레이스:
Traceback (most recent call last):
File "judge/tasks.py", line 144, in judge_submission
result = language_module.setup(sandbox_env, submission.source)
File "judge/languages/c11.py", line 18, in setup
memory_limit=COMPILE_MEMORY_LIMIT)
File "judge/sandbox.py", line 267, in run
error)
Exception: Unexpected monitor result:
{'returncode': 1, 'stderr': "lxc-execute: utils.c: safe_mount: 1284 No such file or directory - Mount of 'proc' onto '/usr/lib/x86_64-linux-gnu/lxc/proc' failed\nlxc-execute: conf.c: tmp_proc_mount: 4121 No such file or directory - failed to mount /proc in the container.\nlxc-execute: conf.c: lxc_setup: 4337 failed to LSM mount proc for 'sandbox-tmpaHWh8C'\nlxc-execute: start.c: do_start: 717 failed to setup the container\nlxc-execute: sync.c: __sync_wait: 51 invalid sequence number 1. expected 2\nlxc-execute: start.c: __lxc_start: 1121 failed to spawn 'sandbox-tmpaHWh8C'\n", 'stdout': ''}
cmdline: python monitor.py -o .stdout -e .stderr -m 547356672 -t 11 "gcc -O3 submission.c -pedantic-errors -lm -std=c11"
(empty stdout)

이런문구가 뜨면서 체점이 되지않습니다..
저뿐만 아니라 다른분들도 안되는거같은데 무슨 문제가 있는건가요??