latest update breaks sites

An error of type E_ERROR was detected on line 253 of the file /home/yourdomain/yourdomain.gr/public/wp-content/plugins/phone-orders-for-woocommerce/classes/class-wc-phone-orders-settings.php. Error code: Uncaught InvalidArgumentException: Invalid key when setting an option in /home/yourdomain/yourdomain.gr/public/wp-content/plugins/phone-orders-for-woocommerce/classes/class-wc-phone-orders-settings.php:253
Stack trace: 0 /home/yourdomain/yourdomain.gr/public/wp-content/plugins/phone-orders-for-woocommerce/classes/class-wc-phone-orders-loader.php(514): WC_Phone_Orders_Settings->set_option() 1 /home/yourdomain/yourdomain.gr/public/wp-includes/class-wp-hook.php(324): WC_Phone_Orders_Loader->disable_quick_search_option_if_needed() 2 /home/yourdomain/yourdomain.gr/public/wp-includes/class-wp-hook.php(348): WP_Hook->apply_filters() 3 /home/yourdomain/yourdomain.gr/public/wp-includes/plugin.php(517): WP_Hook->do_action() 4 /home/yourdomain/yourdomain.gr/public/wp-settings.php(726): do_action() 5 /home/yourdomain/yourdomain.gr/public/wp-config.php(101): require_once(‘…’) 6 /home/yourdomain/yourdomain.gr/public/wp-load.php(50): require_once(‘…’) 7 /home/yourdomain/yourdomain.gr/public/wp-admin/admin-ajax.php(22): require_once(‘…’) 8 {main}

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