Upgrade to PHP7.3 and Changing Apache from Prefork to Event Breaks WordPress

I’ve now managed to fix this issue and managed to successfully migrate form Prefork to Event.

For some reason Apache didn’t let me sudo a2enmod php7.3

I entered sudo a2enconf php7.3-fpm instead of the a2enmod command above, I then restarted both Apache and the PHP FPM service with sudo service apache2 restart && sudo service php7.0-fpm restart

After it had restarted, going back to the WordPress website revealed that the server is now able to read PHP code and display a normal WordPress website.

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