Nextcloud Downgrade v0.42

Upgraded to 0.42 recently
Now I need to move to a new box. I’m getting errors after restoring backup data and running the setup script.

Mail-in-a-Box Version:  v0.42

Updating system packages...
Installing system packages...
Initializing system random number generator...
Firewall is active and enabled on system startup
Installing nsd (DNS server)...
Installing Postfix (SMTP server)...
Installing Dovecot (IMAP server)...
Installing OpenDKIM/OpenDMARC...
Installing SpamAssassin...
Installing Nginx (web server)...
Installing Roundcube (webmail)...
Installing Nextcloud (contacts/calendar)...
Upgrading Nextcloud --- backing up existing installation, configuration, and database to directory to /home/user-data/owncloud-backup/2019-07-08-23:33:41...

FAILED: sudo -u www-data php /usr/local/lib/owncloud/console.php app:disable user_external
-----------------------------------------
An unhandled exception has been thrown:
OC\HintException: [0]: Downgrading is not supported and is likely to cause unpredictable issues (from 15.0.8.1 to 14.0.6.0) ()
-----------------------------------------

Deleted /home/user-data/owncloud, ran the setup script again and it worked. Will have to reupload Nextcloud content, but the issue is resolved.

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