Fatal error: Uncaught TypeError: key(): Argument #1 ($array) must be of type array, null given in /home/vechtd21/domains/vechtdalvloeren.nl/assets/custom/templates/html/webshop/product.calculator.php:40
Stack trace:
#0 /home/vechtd21/domains/vechtdalvloeren.nl/assets/custom/templates/html/webshop/product.calculator.php(40): key()
#1 /home/core/domains/core.typestack.io/assets/core/classes/cms/page/cms.page.content.html.class.php(116): include('...')
#2 /home/core/domains/core.typestack.io/assets/core/plugins/typestack.webshop/classes/page/page.class.php(65): CMS_PageContentHTML::GeneratePageGridHTML()
#3 /home/core/domains/core.typestack.io/assets/core/plugins/typestack.webshop/classes/webshop.class.php(158): TypeStack\Webshop\Page::RenderPage()
#4 /home/core/domains/core.typestack.io/assets/core/plugins/typestack.webshop/plugin.class.php(143): TypeStack\Webshop\Webshop->ParseURLStructure()
#5 /home/core/domains/core.typestack.io/assets/core/classes/plugin/plugin.class.php(165): TypeStack\Webshop\Plugin::Init()
#6 /home/core/domains/core.typestack.io/assets/core/classes/cms/page/cms.page.render.class.php(107): Plugin::Init()
#7 /home/vechtd21/domains/vechtdalvloeren.nl/private_html/index.php(55): CMS_PageRender::RenderPage()
#8 {main}
thrown in /home/vechtd21/domains/vechtdalvloeren.nl/assets/custom/templates/html/webshop/product.calculator.php on line 40
