We are currently running a sophisticated website, with 1000's of products for sale. We are having serious trouble with the MySQL, that causes the website to crash and need rebooting several times a day.
There are problems with the relationships of the PHP and MySQl.
Most times when the site crashes, the PHP pages will load, but any page that requires the database will not work.
We need a professional for this job, to look through all the files, diagnose and fix the problems.