This seems to be a issue with LSPDFR, and scripts. If you have a scripts folder, rename it _scripts. This folder is different from your mods folder. Launch the game with the renamed script folder, and see if it launches. Otherwise if you don't, in the main game directory, there is a LSPDFR uninstall, GO through with that and BACKUP your PLUGINS folder!!! Then freshly install LSPDFR.
Let me know if that fixes your issue!