fix bug in wordpress plugin -- 2

HI I have installed plugin WooCommerce Product Add-ons - [login to view URL] to add auto price to upgrade more big hard-disk to DVR or NVR product now its work perfect my version of the add-ons plugin is 2.9.1 and my version of woocommerce is 4.3.2 for the auto change price I have 2 files: 1. JS files in media library (more>JS-SHOP) do the auto change of the price, name of file is [login to view URL] - [login to view URL] the currency symbol need to display is NEW SHEQEL - [login to view URL] 2. PHP file is in snippet plugin, (all change and code in my site is there) plugin name is product-addon - [login to view URL] > [login to view URL] > [login to view URL] example: movie how its work good - [login to view URL] page example to my original live site works good before update - [login to view URL] [login to view URL] [login to view URL] [login to view URL] [login to view URL] [login to view URL] my develop site after woocommerce and add-ons plugin update - [login to view URL] this URL you need to work with the problem is if I update the woocommerce add-ons plugin or update woocommerce plugin its not work good I want to update the add-ons plugin to version 3.0.38 and update woocommerce plugin to version 4.4.1 and I want its work same like work now without bug. The job need to be modified only in 2 places describe above ([login to view URL], [login to view URL]), and not in the plugin code