503 error in Panel


Anyone can help?
My panel can’t access, i get error 503.

I view the log from mail, i get error

Traceback (most recent call last):
File “/usr/local/CyberCP/plogical/ClusterManager.py”, line 12, in
from firewall.models import FirewallRules
ModuleNotFoundError: No module named ‘firewall.models’

Thank you for your attention

Upgrade CyberPanel and then access again.