Product Price shows sometimes HELP

First let me say I love this plugin but I am having a little bit of a issue. When I use the shortcode to show the price it works and it will show the price on my post but only sometimes. It will show the price one minute then when I refresh the page it show this – then I refresh again and it show the price. Is there anyway it could be more stable on showing the prices? Thank you,

https://www.ads-software.com/plugins/amazon-link/