Error when trying to install

[UltimateDavid]

This extension gives an error when trying to turn it on.

I am running Ubuntu 20.04.3 and GNOME Shell 3.36.9. My NordVPN version (installed using their most up-to-date .deb package) is 3.12.2.

I clicked the upgrade button multiple times, but it reappears every time.
In the Tweaks application it does show up, but with an error message and no way to flip the switch.

I would say it is some kind of version support issue. However, I have no experience with this, so I also don't know how to extract more information about the error message and exact problem. I am sorry if this Issue turns out to be more of a tech support :S

EDIT
I restarted my computer, and it seems to work now.