Hello,
We recommend you to read the documentation available on https://www.phpdocx.com/documentation/conversion-plugin to understand how to install and use the conversion plugin available in Advacend and Premium licenses. On these documentation pages you can also find the steps to debug and test the conversion plugin.
For further support about this question, please send to contact[at]phpdocx.com the username or e-mail of the user that purchased the license.
Regards.