Yunohost is presenting Nextcloud "Untrusted Domain" error, but Nextcloud not installed

I have encountered the below error when trying to access Yunohost user login:

It shows the Nextcloud logo and the words:

" Access through untrusted domain

Please contact your administrator. If you are an administrator, edit the “trusted_domains” setting in config/config.php like the example in config.sample.php.

Further information how to configure this can be found in the documentation."

I received that error without installing Nextcloud. Since then I have tried installing and uninstalling Nextcloud, but no luck. I can’t seem to get back to my user interface. My admin interface works fine.

D

It looks related to the fact that you’re using a self-signed certificate ? What if you install a Lets Encrypt certificate ?