fisher: Cannot install remote plugins/prompts ( -- is this a valid package?)

Whenever I try to install a package (for example, fisher add jorgebucaran/fish-spark), I get the following output: fisher: cannot add github.com/jorgebucaran/fish-spark -- is this a valid package?. When I git clone the repo and install it locally, it works just fine. Confusingly, the same error happened when I copied my ~/.config/fish/ to a remote machine - when I deleted that folder it worked fine. However, deleting that folder locally didn’t fix the issue. I have an OMF install that potentially left remains, however I believe I’ve deleted mostly everything that could be loaded by fish.

Some info: OS: Manjaro Linux fish version 3.0.1 fisher version 3.2.7, ~/.config/fish/functions/fisher.fish