Problem
When I click the 'add' button, I get a toast 'something went wrong' (and there's an error in the console), and the buttons disappear without the song being added. When I click the 'remove' button, nothing happens, but there's a different error in the console.
Here are the relevant console logs for clicking 'add':

And here are the logs for 'remove':

Details
Running Linux
Spicetify v2.16.1 (latest release as of making this)
Spotify version 1.1.84.716.gc5f8b819
I'm running just EnhancePlus with nothing else, though the same thing happens when installing it through the marketplace.
Here's the output of spicetify config to confirm:
Reveal
Settings
color_scheme
inject_css 1
spotify_launch_flags
check_spicetify_upgrade 0
spotify_path /opt/spotify
prefs_path /home/fun840/.config/spotify/prefs
current_theme
replace_colors 1
overwrite_assets 1
Preprocesses
disable_sentry 1
disable_ui_logging 1
remove_rtl_rule 1
expose_apis 1
disable_upgrade_check 1
AdditionalFeatures
extensions enhancePlus.js
custom_apps
sidebar_config 1
home_config 1
experimental_features 1
Backup
version 1.1.84.716.gc5f8b819
with 2.16.1
Problem
When I click the 'add' button, I get a toast 'something went wrong' (and there's an error in the console), and the buttons disappear without the song being added. When I click the 'remove' button, nothing happens, but there's a different error in the console.
Here are the relevant console logs for clicking 'add':

And here are the logs for 'remove':

Details
Running Linux
Spicetify
v2.16.1(latest release as of making this)Spotify version
1.1.84.716.gc5f8b819I'm running just EnhancePlus with nothing else, though the same thing happens when installing it through the marketplace.
Here's the output of
spicetify configto confirm:Reveal