Shopify buy button disappear on live site

Hi, I added Shopify buy button to my website, when i preview it on WordPress it shows fine, but when I view it on live site it disappears, and only shows /**/. I”ve contacted Shopify for assistance, they checked and say there is nothing wrong with my Shopify account, nor the way I put in the code, all works fine. Therefore they asked me to check with WP why it is not showing on the front end of the webpage, can anyone please help?

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