Fatal error: Uncaught Error: Call to undefined function register_post_meta() in /home/users/0/okao0611/web/okao.online/wp-content/plugins/google-analytics-for-wordpress/includes/admin/meta-box.php:46
Stack trace:
#0 /home/users/0/okao0611/web/okao.online/wp-includes/class-wp-hook.php(298): MI_MetaBox->register_meta('')
#1 /home/users/0/okao0611/web/okao.online/wp-includes/class-wp-hook.php(323): WP_Hook->apply_filters(NULL, Array)
#2 /home/users/0/okao0611/web/okao.online/wp-includes/plugin.php(453): WP_Hook->do_action(Array)
#3 /home/users/0/okao0611/web/okao.online/wp-settings.php(448): do_action('init')
#4 /home/users/0/okao0611/web/okao.online/wp-config.php(93): require_once('/home/users/0/o...')
#5 /home/users/0/okao0611/web/okao.online/wp-load.php(37): require_once('/home/users/0/o...')
#6 /home/users/0/okao0611/web/okao.online/wp-blog-header.php(13): require_once('/home/users/0/o...')
#7 /home/users/0/okao0611/web/okao.online/index.php(17): require('/home/users/0/o...')
#8 {main}
thrown in /home/users/0/okao0611/web/okao.online/wp-content/plugins/google-analytics-for-wordpress/includes/admin/meta-box.php on line 46