Mod organizer download with mamager not working

I just downloaded Mod Organizer v1.3.11, typed in my login credentials, I checked the box that says "automatically log in to Nexus, but when I try to click the box that says "Associate with "Download with Manager" links", it doesn't do anything (i do get a loading icon by my cursor for a split second and then it stops). It still says I am not logged in, and when i try to download something from the Nexus, I get an error message that says: "No handler found- No application registered to handle this game. If you expected Mod Organizer to handle the link, you have to go to Settings->Nexus and click the "Associate with... links"-button. If you have NMM installed, you can re-register it for nxm-links so it handles the links that MO doesn't." ... I'm confused because I've used Mod organizer for Skyrim Special Edition before, and I've never had this problem