Even with a perfect install, things can go wrong. Here is the solution guide for the three most common errors:
Download the latest version from the Xenoverse Mods forum. Run XV2INS.exe and point it to your DBXV2.exe location (usually C:\Program Files (x86)\Steam\steamapps\common\DB Xenoverse 2). This patches the EXE to read loose mod files. Dragon Ball Xenoverse 2 Revamp Download
Navigate to %LocalAppData%\DBXV2\Saved\. Copy DBXV2.sav to your desktop. Revamp is not save-compatible with vanilla; you will need to start a new game or use a converted save. Even with a perfect install, things can go wrong