Redesign addon not meshing with BetterTags glutanimate addon

[Salamoneus]

Every time I open up the browser with the BetterTags addon active, it displays this error message/debug console (the error goes away after I disable BetterTags) Any thoughts?
Thanks!

Error
An error occurred. Please start Anki while holding down the shift key, which will temporarily disable the add-ons you have installed.
If the issue only occurs when add-ons are enabled, please use the Tools>Add-ons menu item to disable some add-ons and restart Anki, repeating until you discover the add-on that is causing the problem.
When you've discovered the add-on that is causing the problem, please report the issue on the add-ons section of our support site.
Debug info:
Anki 2.1.15 (442df9d6) Python 3.6.7 Qt 5.12.1 PyQt 5.11.3
Platform: Mac 10.15.3
Flags: frz=True ao=True sv=2
Add-ons possibly involved: BetterTags

Caught exception:
File "aqt/browser.py", line 822, in onTreeClick
File "/Users/snaqvi/Library/Application Support/Anki2/addons21/bettertags/sidebar_old.py", line 153, in
item.onclick = lambda i=item, t=partial_tag: sidebar.onTagClick(i, t)
File "/Users/snaqvi/Library/Application Support/Anki2/addons21/bettertags/sidebar_old.py", line 454, in onTagClick
self.browser.setFilter("tag", tag)
<class 'AttributeError'>: 'NoneType' object has no attribute 'setFilter'