Still have insecure link

Hi, i download your plugin but i still have 3 images that’s not secure.

Total number of items: 83
Number of insecure items: 3
Insecure URL: https://coopscosf.com/wp-content/uploads/2016/01/school_pattern.png
Found in: https://coopscosf.com/

Insecure URL: https://coopscosf.com/wp-content/uploads/2016/02/banc-min.png
Found in: https://coopscosf.com/

Insecure URL: https://coopscosf.com/wp-content/uploads/2014/10/logo_hau_21.png?a9926c
Found in: https://coopscosf.com/

Please help !

https://www.ads-software.com/plugins/ssl-insecure-content-fixer/