Issue while configuring set randomizer

[Playandstudy]

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.
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Debug info:
Anki 2.1.44 (b2b3275f) Python 3.8.6 Qt 5.14.2 PyQt 5.14.2
Platform: Windows 10
Flags: frz=True ao=True sv=1
Add-ons, last update check: 2021-06-20 18:16:35

Caught exception:
Traceback (most recent call last):
File "C:\Users\LAPTOP\AppData\Roaming\Anki2\addons21\set_randomizer\src\gui_config\custom\sr_config.py", line 47, in saveCurrentSetting
write_back(settings)
File "C:\Users\LAPTOP\AppData\Roaming\Anki2\addons21\set_randomizer\src\gui_config\custom\sr_config.py", line 25, in write_back
setup_models(settings)
File "C:\Users\LAPTOP\AppData\Roaming\Anki2\addons21\set_randomizer\src\lib\model_editor.py", line 23, in setup_models
remove_model_template(model)
File "C:\Users\LAPTOP\AppData\Roaming\Anki2\addons21\set_randomizer\src\lib\model_editor.py", line 35, in remove_model_template
mw.col.media.syncDelete(front_name)
AttributeError: 'MediaManager' object has no attribute 'syncDelete'

Anki 2.1.44, Windows 10