Fatal error: Uncaught Error: Call to undefined function is_checkout() in /homepages/2/d383031061/htdocs/wwwotkv2/wp-content/plugins/mangopay-woocommerce/inc/main.inc.php:2206
Stack trace:
#0 /homepages/2/d383031061/htdocs/wwwotkv2/wp-includes/class-wp-hook.php(286): mangopayWCMain->order_redirect('')
#1 /homepages/2/d383031061/htdocs/wwwotkv2/wp-includes/class-wp-hook.php(310): WP_Hook->apply_filters(NULL, Array)
#2 /homepages/2/d383031061/htdocs/wwwotkv2/wp-includes/plugin.php(453): WP_Hook->do_action(Array)
#3 /homepages/2/d383031061/htdocs/wwwotkv2/wp-includes/template-loader.php(12): do_action('template_redire...')
#4 /homepages/2/d383031061/htdocs/wwwotkv2/wp-blog-header.php(19): require_once('/homepages/2/d3...')
#5 /homepages/2/d383031061/htdocs/wwwotkv2/index.php(17): require('/homepages/2/d3...')
#6 {main}
thrown in /homepages/2/d383031061/htdocs/wwwotkv2/wp-content/plugins/mangopay-woocommerce/inc/main.inc.php on line 2206