I get the same error as Mostafiz when installing via zppy on SSH. In my case, I'm using Ubuntu 14.04 LTS though.
In spite of the error, the module installs, is available in the panel and generates self-signed certificates. However, they don't work.
Code:
Notice: Undefined property: XMLTag::$type in /etc/sentora/panel/dryden/ui/module.class.php on line 82
Notice: Trying to get property of non-object in /etc/sentora/panel/dryden/ui/module.class.php on line 82
Module installed successfully!
In spite of the error, the module installs, is available in the panel and generates self-signed certificates. However, they don't work.