We use a plugin called Nested pages to manage our ~250 pages. Without the plugin, the amount of pages and parent/child page relationships becomes too overwhelming to manage in the normal WordPress pages menu. It seems like after the recent X Theme Pro update we did (to v5.1.4) the Theme is in conflict with the Nested Pages plugin. When the plugin is active and we have a default WordPress theme active, the page loads with no issue. However, when the plugin is active, all other plugins are deactivated, and our Pro theme is active, the site will not load and produces a 503 error. As X Theme and Nested pages are both vital to the function of our site, I am looking to find a solution for this issue.
Thank you.