This is the Mapbender module, the main-component of the Mapbender application.
This module works like a library and can not run for itself. It has to be integrated in the Mapbender-Starter, which is the starting-environment for building Mapbender. The module is loaded via Composer in the composer.json of Mapbender-Starter.
This Mapbender module contains most functionality of Mapbender itself, from the map to the different searches. These elements are described in the user-documentation.
To build and develop Mapbender itself refer to the Contributing Guide in Mapbender-Starter.
Place issues at: https://github.com/mapbender/mapbender/issues.
You can also join the mailing-list.