Conflict with WooCommerce Product Add-Ons extension.

Hello, we are trying to update plugins in our ecommerce website and have come across an issue whereby users cannot reach SagePay payment pages when buying products using the WooCommere Product Add-Ons plugin. All other products are fine. We are working on a development site before applying to live site. It looks to us that the problem is caused by a conflict between the WooCommere Product Add-Ons plugin and your SagePay Form Gateway for WooCommerce – we are using: WordPress 5.0.2–en_GB. Are you aware of this conflict and can it be resolved?

The error we see is:

Fatal error: Uncaught ArgumentCountError: Too few arguments to function WC_Product_Addons_Display::fix_file_uploaded_display(), 1 passed in /homepages/13/d288658033/htdocs/REDKITE TESTBED 2018/wp-includes/class-wp-hook.php on line 286 and exactly 3 expected in /homepages/13/d288658033/htdocs/REDKITE TESTBED 2018/wp-content/plugins/woocommerce-product-addons/includes/class-wc-product-addons-display.php:483 Stack trace: #0 /homepages/13/d288658033/htdocs/REDKITE TESTBED 2018/wp-includes/class-wp-hook.php(286): WC_Product_Addons_Display->fix_file_uploaded_display(‘Blue Edge’) #1 /homepages/13/d288658033/htdocs/REDKITE TESTBED 2018/wp-includes/plugin.php(203): WP_Hook->apply_filters(‘Blue Edge’, Array) #2 /homepages/13/d288658033/htdocs/REDKITE TESTBED 2018/wp-content/plugins/woocommerce/includes/class-wc-order-item-meta.php(208): apply_filters(‘woocommerce_ord…’, ‘Blue Edge’) #3 /homepages/13/d288658033/htdocs/REDKITE TESTBED 2018/wp-content/plugins/woocommerce/includes/class-wc-order-item-meta.php(128): WC_Order_Item_Meta in /homepages/13/d288658033/htdocs/REDKITE TESTBED 2018/wp-content/plugins/woocommerce-product-addons/includes/class-wc-product-addons-display.php on line 483

Thanks in advance for your help.

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