I literally have just downloaded drag and dropped the ELS 1.0.5 and the separate updated AdvancedHook.dll from https://www.lcpdfr.com/downloads/gta5mods/scripts/13865-emergency-lighting-system/. I have to say that LSPDFR crashes occasionally on startup, but I can usually resolve it by just starting again. For ELS I tried every option in the RageHookPlugin to not load or load all or selected plugins on startup.
Edit: When I delete the ELS folder, ELS.asi and ELS.ini file it works as intended. At first I thought that the new "mods" folder could have something to do with it but it doesn't seem like it.