Basic Printing Support Add-on Not Working

I have just downloaded an add on to print my Anki cards. However, I get this message. Please help - Thanks!

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 10.13.6
Flags: frz=True ao=True sv=1
Add-ons possibly involved: Basic Printing Support

Caught exception:
File “/Users/pearlhayward/Library/Application Support/Anki2/addons21/1025789669/”, line 57, in onPrint
qatxt = qatxt = c._getQA(True, False)[‘a’]
<class ‘AttributeError’>: ‘Card’ object has no attribute ‘render_output’

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