Fatal error: Uncaught TypeError: count(): Argument #1 ($value) must be of type Countable|array, null given in /var/www/vhosts/contat.eu/httpdocs/wp-content/plugins/contattools/tools/wooc-product-addons/frontend.php:29 Stack trace: #0 /var/www/vhosts/contat.eu/httpdocs/wp-includes/class-wp-hook.php(326): ContatTools->{closure}() #1 /var/www/vhosts/contat.eu/httpdocs/wp-includes/plugin.php(205): WP_Hook->apply_filters() #2 /var/www/vhosts/contat.eu/httpdocs/wp-content/plugins/woocommerce/includes/class-wc-cart.php(1145): apply_filters() #3 /var/www/vhosts/contat.eu/httpdocs/wp-content/plugins/woocommerce/includes/class-wc-form-handler.php(834): WC_Cart->add_to_cart() #4 /var/www/vhosts/contat.eu/httpdocs/wp-content/plugins/woocommerce/includes/class-wc-form-handler.php(806): WC_Form_Handler::add_to_cart_handler_simple() #5 /var/www/vhosts/contat.eu/httpdocs/wp-includes/class-wp-hook.php(324): WC_Form_Handler::add_to_cart_action() #6 /var/www/vhosts/contat.eu/httpdocs/wp-includes/class-wp-hook.php(348): WP_Hook->apply_filters() #7 /var/www/vhosts/contat.eu/httpdocs/wp-includes/plugin.php(517): WP_Hook->do_action() #8 /var/www/vhosts/contat.eu/httpdocs/wp-settings.php(665): do_action() #9 /var/www/vhosts/contat.eu/httpdocs/wp-config.php(106): require_once('...') #10 /var/www/vhosts/contat.eu/httpdocs/wp-load.php(50): require_once('...') #11 /var/www/vhosts/contat.eu/httpdocs/wp-blog-header.php(13): require_once('...') #12 /var/www/vhosts/contat.eu/httpdocs/index.php(17): require('...') #13 {main} thrown in /var/www/vhosts/contat.eu/httpdocs/wp-content/plugins/contattools/tools/wooc-product-addons/frontend.php on line 29
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