I have Upgraded the DNN to 9.1.1 from 7.3.2

Currently i am facing the issue while accesing the Registration page in the login page and while taking the page setting in edit mode am geting the below error

Popup is showing but content is not showing and am getting the error in console like below

Page was loaded over HTTPS, but requested an insecure resource , This request has been blocked; the content must be served over HTTPS.

Any one please help me on this