Warning: Trying to access array offset on value of type bool in /usr/www/users/overbe/wp-includes/theme.php on line 1556

Fatal error: Uncaught Error: Call to undefined function create_function() in /usr/www/users/overbe/wp-content/plugins/mappress-google-maps-for-wordpress/pro/mappress_pro.php:13
Stack trace:
#0 /usr/www/users/overbe/wp-content/plugins/mappress-google-maps-for-wordpress/mappress.php(637): Mappress_Pro->__construct()
#1 /usr/www/users/overbe/wp-settings.php(273): include_once('/usr/www/users/...')
#2 /usr/www/users/overbe/wp-config.php(91): require_once('/usr/www/users/...')
#3 /usr/www/users/overbe/wp-load.php(39): require_once('/usr/www/users/...')
#4 /usr/www/users/overbe/wp-blog-header.php(13): require_once('/usr/www/users/...')
#5 /usr/www/users/overbe/index.php(17): require('/usr/www/users/...')
#6 {main}
  thrown in /usr/www/users/overbe/wp-content/plugins/mappress-google-maps-for-wordpress/pro/mappress_pro.php on line 13