Tabs with WooCommerce Print Products-plugin

Hello, thank you for the valuable plugin. I am using tabs for showing additional information and features of products. I started to use WooCommerce Print Products-plugin (Version 1.3.3 | By DB-Dzine) for printing out “mini brochures” of the products. WPP finds YIKES as custom meta key but when clicked the PDF result shows only the word “array”.

I am not a coding guy but as far as I understand, some code might be needed to get the tabs linked to another plugin. Can you help me? I don’t know where to start but this would be a lifesaver here ??

Thanks!