Problem with PHPlist and Godaddy Managed Wordpress

I inherited a PHPlist instal from a client who moved their hosting over to me in January. The site is in a managed Wordpress hosting. I was able to reconnect them to PHPlist after we moved the site without any problems but on Monday they reported that they were having problems with the PHPlist app and that it was timing out. I was wondering if anyone was aware of any conflicts that PHOlist might be having with the Managed Wordpress Hosting? They sent me the attached screen capture if that helps.