12/09/2018
Tried to activate PHP 7.2 on the server, but kept getting errors.
I thought it might be the template, contacted the vendor TAVTHEMES but did not get much help.
Talked to my ISP to see what they could do, they suggested moving my site to a different server, I agreed, and this is where trouble started!
Site was down with a cryptic error message. It took me 2 days after trying a lot of stuff, going to the Joomla Forum posting my problem and having discussions with several people without success.
Thankfully I had taken a backup with AKKEEBA before the migration. So, I created a new subdomain, a new Data Base and a new user and restore the site there. It worked!
So now I had to figure out what was was wrong with the main site.
My ISP figured out that the MySQL version on the new server did not like my original password, it was too weak, and was probably creating a random one, which I have no idea what it was, and hence could not access the site.
The solution was to modify the configuration.php file to show the new user and password created.