Whenever we load the "All Quizzes" page, it gives an "500 Internal Server Error"
https://ourwebsite.com.au/wp-admin/edit.php?post_type=quiz
We've cleared the Cache, and tried on different PC/Macs and different browsers. The issue only appears when loading the default "All Quizes" page, If we filter by "September 2016" or Author = "Matt" the page loads correctly.
Okay can you please check your server php error log or possibly share it here ?
(upload it somewhere online and share its link here ) .
I guess it is due to your server php memory limit .