Fatal error: Uncaught Error: Call to undefined function register_post_meta() in /var/www/web8/htdocs/wp-content/plugins/google-analytics-for-wordpress/includes/admin/meta-box.php:46
Stack trace:
#0 /var/www/web8/htdocs/wp-includes/class-wp-hook.php(298): MI_MetaBox->register_meta()
#1 /var/www/web8/htdocs/wp-includes/class-wp-hook.php(323): WP_Hook->apply_filters()
#2 /var/www/web8/htdocs/wp-includes/plugin.php(453): WP_Hook->do_action()
#3 /var/www/web8/htdocs/wp-settings.php(448): do_action()
#4 /var/www/web8/htdocs/wp-config.php(115): require_once('/var/www/web8/h...')
#5 /var/www/web8/htdocs/wp-load.php(37): require_once('/var/www/web8/h...')
#6 /var/www/web8/htdocs/wp-blog-header.php(13): require_once('/var/www/web8/h...')
#7 /var/www/web8/htdocs/index.php(17): require('/var/www/web8/h...')
#8 {main}
thrown in /var/www/web8/htdocs/wp-content/plugins/google-analytics-for-wordpress/includes/admin/meta-box.php on line 46