Please provide steps to reproduce the error.
*Go to https://meta.wikioasis.org/wiki/Special:Manage_Two-factor_authentication?action=enable&module=totp&warn=1
What happened that shouldn't have?
An exception occurs.
What should have happened?
The page to enable TOTP 2FA should have appeared.
Provide a link to Special:Version for the site you're experiencing this on.
https://meta.wikioasis.org/wiki/Special:Version