This is not a VPS. It is a shared host that we have been using for WP sites since 2009 with no trouble. We have 5 WP sites currently up and running with no issues.
I have only had trouble with www.stevenjonesarchitect.com and www.pamawsquiltsandcrafts.com that I am trying to build now with commonality being DMS and PostPins. StevenJonesArchitect.com is still under construction, but appears to be functioning properly now. The later not so much. It functions upon disabling plugins, but as you add them back eventually the site editor stops loading with PostPins appearing to be the straw that breaks the camels back.
The DMS Editor was still unable to load when I attempted just now. I disabled PostPins and now it loads. Only I would like to use PostPins for this site.
I have not added any scripts, and the plugins I am using are all being used on other sites with no issues.
Since I am basically just getting started with this one, I will wipe the site clean and start over with a fresh WP install and database.