Control Panel and Landing Page issues onn LXD containers

I have a set of server containers hosted through ISPConfig. Right after I changed the settings within the dashboard to automatically redirect the site to the ssl site as I have done before, I am having issues accessing the primary domain. Any insight to address this issue would be appreciated.

I also have another issue pertaining to Nextcloud on the same lamp container. I activated the two-factor authentication using backup codes, and since then, I am unable to login in. I tried to disable two-factor authentication without much success. Any suggestion for this one would also be appreciated.

Good news. Nextcloud error addressed. For solution, please see the below thread:

However, the first one needs to be still addressed. Any insight from the community would be appreciated.

Control panel issue resolved too.

For details, Need to find where the admin port is set | Page 2 | Howtoforge - Linux Howtos and Tutorials