For instructions on how to install the pack, view the documentation page of this product, or check out the official documentation: https://moportfolio.de/en/mp_comp/installation-of-mp_comp/

There are several way to avoid this, by seperating the composited result from the raw render: Use Blenders “File Output”-node in the Compositor and connect it to the “Render Layers”-node. This way, you will export both the composited result and the raw render into the specified directories. Export your render as a multi-layer OpenEXR file(s). This way, the raw and the composited render pass will be on their owen seperate layer. Disable the compositing node-tree when rendering the 3D-scene. Then import the raw render as an image (sequence) into the compositor and use it as an input instead.