PHP Fatal Error:
PluginVersion 2.3.2, PHP 7.0
[03-Jan-2018 21:05:07 UTC] PHP Fatal error: Uncaught Error: Call to a member function get_available_payment_gateways() on null in /var/www/vhosts/xxx/httpdocs/wp-content/plugins/checkout-fees-for-woocommerce/includes/class-wc-checkout-fees.php:167
Stack trace:
#0 /var/www/vhosts/xxx/httpdocs/wp-includes/class-wp-hook.php(286): Alg_WC_Checkout_Fees->add_gateways_fees(Object(WC_Cart))
#1 /var/www/vhosts/xxx/httpdocs/wp-includes/class-wp-hook.php(310): WP_Hook->apply_filters('', Array)
#2 /var/www/vhosts/xxx/httpdocs/wp-includes/plugin.php(453): WP_Hook->do_action(Array)
#3 /var/www/vhosts/xxx/httpdocs/wp-content/plugins/woocommerce/includes/class-wc-cart.php(1711): do_action('woocommerce_car...', Object(WC_Cart))
#4 /var/www/vhosts/xxx/httpdocs/wp-content/plugins/woocommerce/includes/class-wc-cart-totals.php(277): WC_Cart->calculate_fees()
#5 /var/www/vhosts/xxx/httpdocs/wp-content/plugins/woocommerce/includes/class-wc-cart-totals.php(777): WC_Cart_Totals->get_fees_from_c in /var/www/vhosts/xxx/httpdocs/wp-content/plugins/checkout-fees-for-woocommerce/includes/class-wc-checkout-fees.php on line 167