Hi,
First of all, you need to check the status of the package 'zentyal-dhcp':
sudo dpkg -l zentyal-dhcp
Then, I recommend you to check if there is other package that is broken:
sudo dpkg -l | egrep -v '^ii'
In case you have any broken package, you can try to fix them with the following command:
sudo dpkg --configure -a
If the issue persists, then, analyze the following log files in order to get any information about the error:
* /var/log/zentyal/zentyal.log
* /var/log/syslog
* /var/log/dpkg.log
* /var/log/apt/
Also, you should check the disk space:
df -h
furthermore, you should take a look at apparmor, perhaps it is causing you the issue with this module.
sudo systemctl status apparmor
Hope it helps.
--
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