HTTPS security is compromised by ( Image Link )

I have installed https on my site but when i open it it says

( Your connection to this site is not fully secure
attackers might able to see the images you are looking at and trick you by modifing them )

when i press F12 to see consloe errors in debugger
it show me this =>
(HTTPS security is compromised by http://www.egydelivery.com/content/images/thumbs/0004038_-925_415.jpeg)

note: the pages without images in fully secured


PLEAZE HELP,

Kind regards,
THANK YOU.

this is the link of my site : https://www.egydelivery.com/

This is because HTTPS is only considered secure when every connection to your website has HTTPS Now it's not because when someone would man in the middle the connection between your website and the client computer he could still inject stuff in all http connections

Search for where this image gets loaded the fact that you only have one http link might indicate it's hard coded then you could just search in the code for this url and change it.

SLOVED
the problem was in CloudFlareCDN in server
Thank you sir.