Server 5xx error for 38 pages GSC

Hi there,

I am getting a 5xx error for 38 AMP pages on my website,

Few of them are,

https://questionpapershub.com/kustard-internship-2020-hiring-sales-and-marketing-interns-apply-now/amp/

https://questionpapershub.com/iit-roorkee-fellowship-2020-apply-now/amp/

https://questionpapershub.com/best-movies-for-entrepreneur-must-watch/amp/

Error Log:
PHP Fatal error: Uncaught Error: Call to a member function get_contents() on null in /home/xxxxxxxxx/xxxxxx/questionpapershub.com/public_html/wp-content/plugins/accelerated-mobile-pages/components/components-core.php:398

Please help me fix the issue.