We shared with the team and you are the only one with this issue, so the settings should be good for you too. I would like to make a second attempt
- make a mysqldump of mariadb 55 (verify you have something inside and save it elsewhere)
mysqldump nextcloud > nextcloud.sql - delete the mariadb105 nextcloud database
/opt/rh/rh-mariadb105/root/bin/mysql --socket="/var/run/rh-mariadb105-mariadb/nextcloud-mysql.sock"
then drop the database
drop database nextcloud; - add more RAM
- Do a snapshot of the VM
- then reinstall the rpm
yum reinstall nethserver-nextcloud