can't load the Buttonizer on the dashboard

error in console:

Mixed Content: The page at 'https://www.amzwizard.cc/wp-admin/admin.php?page=Buttonizer&welcome-splash=true#/' was loaded over HTTPS, but requested an insecure XMLHttpRequest endpoint 'http://www.amzwizard.cc/wp-json/buttonizer/dashboard?nonce=0dda389771'. This request has been blocked; the content must be served over HTTPS.

The website has enabled compulsory SSL. Now it's blank on the plug page.

Now the website can not now pop window,

This is an error that my button pop-up window can't display

Thanks for all of the screenshots!

It seems like the WordPress function get_rest_url() is returning your site's URL without https://.

Could you check if your site has https:// on both WordPress Address (URL) and Site Address (URL) under
Settings -> General ?

Thank you for your support. I have solved this problem