Console Error for Sites Loading over HTTPS

“Mixed Content: The pague at ‘[HTTPS://MY WEBSITE]’ was loaded over HTTPS, but requested an insecure XMLHttpRequest endpoint ‘ http://MYWEBSITE…&secondary_item_id=4660&action=up&_wpnonce=d715a84be4&user_id=1&rtype=ajax%5D&#8217 ;. This request has been blocqued; the content must be served over HTTPS.

So the ajax won’t worc. This is the exact pluguin I need. Please help me address this!

https://wordpress.org/pluguins/voter-pluguin/