Hello Ruenel,
I went through the basic troubleshooting procedures and discovered that it must be the child theme. However, the child theme has not been changed since we started working with this website, and it did not throw any fatal errors for the first several weeks.
The child theme is comprised of very few, relatively short, files. I did not see anything in them that looks like it has to do with CSS, the media library, or anything else that is throwing errors. I have provided credentials to the site in the secure note for this post. I would appreciate it if you could take a look and help me resolve these errors.
I attempted to update a plugin with the theme active and got this error message:
Update Failed: var $ = jQuery; $(window).scroll(function() { var distanceFromTop = $(this).scrollTop(); var requiredDistanceFromTop = $('.inner-hero').height() + $('.serp-values').height() + $('.class-description-section').height() + 200; if (distanceFromTop >= requiredDistanceFromTop) { $('.sticky-classes-nav').addClass('sticky'); } else { $('.sticky-classes-nav').removeClass('sticky'); } }); {"success":true,"data":{"update":"plugin","slug":"envira-gallery-lite","oldVersion":"Version 1.7.8.8","newVersion":"Version 1.7.8.9","plugin":"envira-gallery-lite\/envira-gallery-lite.php","pluginName":"Envira Gallery Lite"}}
Oddly, just as with the CSS, the plugin updated successfully.
Thank you for your assistance.