Problem after installing Admin module

Hello.
After installing the module Cer_manager (zppy repo add zppy.github.io
zppy update
zppy install Cer_manager)
I accessed the admin page of sentora and I activate the module.

I activated the module for: admin, reseller, and User.
When saving the settings, the admin page of sentora no longer works.

consigugo only view the user settings (account info)

See the image: