Personally, I've experienced issues with crashing relating to StopThePed & Ultimate Backup (Bejojio)
The way to fix these issues is to install the most recent version of RAGENativeUI.
Otherwise, it could just be that a plugin/vehicle model is being installed incorrectly. Try uninstalling all plugins and models, installing a fresh version of LSPDFR, and then proceeding with reinstalling all plugins/models individually.