Fresh install, as noted above, of WordPress. With ZERO plugins and no child theme. I saw this: https://theme.co/apex/forum/t/php-fatal-error-uncaught-error-call-to-undefined-function/4739 but the last question the member poses wasn’t answered. Is the “<?php x_get_view( x_get_stack(), 'wp', 'index' ); ?>” call correct? That said, what else could it be if that call IS correct?
I’m growing quite desperate as many who have posted AFTER me have received attention.