Mixed Content error after installing SSL Cert [solved]

Greetings,
I have just installed an SSL Certificate after which I get the following error:

Loading mixed (insecure) display content...

I looked at other dicusssions regarding this and installed the following plugin as recommended:

http://muffingroup.com/plugins/mfn-migrate-cb.zip

I have cleared all server cache as well, yet I get the same error.

Here is the URL

https://moesdelioc.com/

Any tips?

Thanks in advance.