Memrise2ankii 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-on support site.
Debug info:
Anki 2.1.35 (84dcaa86) Python 3.8.0 Qt 5.14.2 PyQt 5.14.2
Platform: Windows 10
Flags: frz=True ao=True sv=1
Add-ons, last update check: 2021-05-03 13:39:05

Caught exception:
Traceback (most recent call last):
File “C:\Users\Mohammad\AppData\Roaming\Anki2\addons21\943678145\”, line 210, in accept
if self.memriseService.login(self.usernameLineEdit.text(),self.passwordLineEdit.text()):
File “C:\Users\Mohammad\AppData\Roaming\Anki2\addons21\943678145\”, line 770, in login
for field in form.find_all(“input”):
AttributeError: ‘NoneType’ object has no attribute ‘find_all’