Notice: Trying to access array offset on value of type null in /var/www/html/wp-content/themes/vice/module-gallery.php on line 8

Fatal error: Uncaught Error: Call to undefined function get_post_meta() in /var/www/html/wp-content/themes/vice/module-gallery.php:9 Stack trace: #0 {main} thrown in /var/www/html/wp-content/themes/vice/module-gallery.php on line 9