Getting the following error: XMLHttpRequest cannot load….

XMLHttpRequest cannot load https://wildoceandirect.com/shop?filter_products=69. No ‘Access-Control-Allow-Origin’ header is present on the requested resource. Origin ‘http://wildoceandirect.com’ is therefore not allowed access.

Plugin had been working very well, now it seems to be stalling out on this error message. Everything that is being loaded is on the site and SSL is in place. Any help/advice would be greatly appreciated.

https://ww.wp.xz.cn/plugins/yith-woocommerce-ajax-navigation/