Hello @omsuhani,
The recommended version by WordPress for PHP is 7.3 or above. Please update your PHP version and see if the issue is still there.
If you still get the error after updating PHP, then check for theme or plugin conflicts.
Please come back here and share your test results.
Hello,
Thanks for using Tutor LMS.
We have tried our localhost with PHP 5.6 and can’t see PHP fatal error or anything.
We have sent you an email and waiting for your reply.