My Joomla 3.6 website up time is pretty good, however at times of high traffic, my site shows a white page with the following text;
Error displaying the error page: Application Instantiation Error: Could not connect to MySQL.
What would cause this?
I've read that it's normally a setting in the configuration.php file but surely if that was the case my site would never work?
Is there anything I can check or optimise regarding the database? Perhaps logs?
I should add that this is on a shared hosting server (JustHost).
Any advice is appreciated.