Downloading software from unofficial "portable" or "here file download link" sources carries significant risks:
If you are looking for a portable version to move your work between computers, you can manually transfer your Luminar Catalog instead of using a modified portable app: Locate your Luminar 4 Catalog folder (usually found in your system's "Pictures" folder).
If you were actually looking for a or software help for a specific program, could you clarify if this is for a photo editor or a different type of utility?