Fatal error: Out of memory (allocated 48930816) (tried to allocate 20480 bytes) in /var/www/html/public_html/wp-includes/wp-db.php on line 1989

Fatal error: Out of memory (allocated 48930816) (tried to allocate 20480 bytes) in /var/www/html/public_html/wp-includes/class-wp-hook.php on line 271