Hello,
The trial package uses an internal DOCX template (phpdocxBaseTemplate.docx) as base template to generate new documents. This file is available in the templates folder of the package.
Please check that you have copied all contents of the package and the server has read access to them. We recommend you to to download the package again, extract it and without changing anything run one of the included samples using PHP CLI mode (Core/addText/sample_1.php is the most simple one).
Regards.