Login to cacti after ~ 24 hours fails

[proserv]

Hello,
Hopefully someone will reply to this post with a fix.
I had cacti running well for about 2 years. After running an upgrade to 1.2.12 it appeared to be OK, but about 24 hours later, cannot login to the GUI.
After upgrading ran mysql cacti < backup.sql which was the mysql dump of cacti prior to the upgrade.

So I thought perhaps the backup.sql was somehow incompatible with the new 1.2.12 cacti.

What I did then was drop the cacti database, and uninstalled the cacti port and then rm -rf /usr/local/share/cacti. Left /var/db/cacti which contains the .rra files intact.

Reinstalled the cacti 1.2.12 port. This time I did not upload the mysql backup database. Just left it the way the default is installed. I tested the login using both correct and incorrect credentials. When using incorrect credentials the login page displays in red wrong user/pass. About 24 hours later, could not login using correct credentials and, when using incorrect credentials, the 'incorrect user/pass' in red is NOT displayed.

I looked at log files and see absolutely nothing about failed logon's.

Operating System: FreeBSD 11.3 AMD/64
Web server: Apache/2.4.43
php version: PHP 7.2.30 (cli) (built: Apr 23 2020 01:33:20) ( NTS )
Copyright (c) 1997-2018 The PHP Group
Zend Engine v3.2.0, Copyright (c) 1998-2018 Zend Technologies
with Zend OPcache v7.2.30, Copyright (c) 1999-2018, by Zend Technologies

After writing the above, again ran mysql drop database cacti; create database cacti;
and then add the grants to the cacti user. Finally run mysql cacti < /usr/local/share/cacti/cacti.sql
Now I had to login to the web GUI admin/admin and change passwd for admin user. So far so good but of course all my graphs are not present....

Then, I ran mysql cacti < /root/cacti-backup-5-11-20.sql

Now all my graphs are present and are populated with data.

In around 24 hours from now, the login will NOT work.
Any help is greatly appreciated.
Thanks.

[proserv]

Now that I can login to cacti, wonder why the 95% is displaying 0.

Looking at 'last month' it displays:

cacti_graph_5.png (43.39 KiB) Viewed 285 times

There is not a chance that graph has the right data.

Looking at graphs for last year, same thing, the data is incorrect.

How can I get it corrected?
Thanks.