Zen Cart Version 1.3.8a
Host Server: Dot5 Hosting
URL: http://www.scor-pal.com/magnolia/store2/

I am experiencing high volumes on my store site (up to 40 customers on-line at a time) and it is regularly going down, both on the front end (customer) and the back end (admin). In the admin side I have been getting the following error message:
DB_ERROR_NOT_CONNECTED

I am assuming it is due to traffic overload. The site also slows way down with admin pages taking up to 60 secs to load as I process orders and print invoices.

I have added additional 'usernames' to MYSQL data base (i now have 25) but the problem persists. Do the new 'usernames' automatically get used or do I have to changed the configure.php file somehow?

Any ideas? Roy