Fatal error: Uncaught TypeError: in_array(): Argument #2 ($haystack) must be of type array, null given in /var/www/vhosts/koudenburggroen.nl/httpdocs/modules/sitemap/Sitemap.php:108
Stack trace:
#0 /var/www/vhosts/koudenburggroen.nl/httpdocs/modules/sitemap/Sitemap.php(108): in_array()
#1 /var/www/vhosts/koudenburggroen.nl/httpdocs/modules/sitemap/Sitemap.php(49): Sitemap->_generateSitemap()
#2 /var/www/vhosts/koudenburggroen.nl/httpdocs/modules/sitemap/Sitemap.php(30): Sitemap->_sitemapOverview()
#3 /var/www/vhosts/koudenburggroen.nl/httpdocs/cms/includes/engine/Loader.php(90): Sitemap->execute()
#4 /var/www/vhosts/koudenburggroen.nl/httpdocs/cms/includes/engine/Loader.php(20): Loader->_init()
#5 /var/www/vhosts/koudenburggroen.nl/httpdocs/common.php(114): Loader->__construct()
#6 /var/www/vhosts/koudenburggroen.nl/httpdocs/index.php(12): require_once('...')
#7 {main}
thrown in /var/www/vhosts/koudenburggroen.nl/httpdocs/modules/sitemap/Sitemap.php on line 108