How to fix Mixed Content – Errors that cause breaking my padlock

Dear Xtemos,

Please help me to fix this :
https://prnt.sc/ttaq38

– Hard Failure A file with an insecure url of “http://kulakaja.com/wp-content/uploads/2020/08/xts-header_528910-1596465818.css?ver=5.0.3” was loaded on line: 33 of https://kulakaja.com/.
This URL will need to be updated to use a secure URL for your padlock to return.
= Soft Failure A file with an insecure url of “http://dummy.xtemos.com/woodmart/wp-content/themes/woodmart/images/wood-logo-dark.svg” was loaded on line: 3220 of https://kulakaja.com/.
This URL will need to be updated to use a secure URL for your padlock to return.
– Soft Failure A file with an insecure url of “http://dummy.xtemos.com/woodmart/wp-content/uploads/2017/06/wood-o-background.svg?id=215” was loaded on line: 2680 of https://kulakaja.com/.
This URL will need to be updated to use a secure URL for your padlock to return.
– Soft Failure A file with an insecure url of “http://dummy.xtemos.com/woodmart/wp-content/uploads/2017/06/wood-green-slider-bestsellers-dummy.png?id=305” was loaded on line: 2680 of https://kulakaja.com/.
This URL will need to be updated to use a secure URL for your padlock to return.
– Soft Failure A file with an insecure url of “http://dummy.xtemos.com/woodmart/wp-content/uploads/2017/06/wood-about-us-bg.jpg?id=217” was loaded on line: 2680 of https://kulakaja.com/.
This URL will need to be updated to use a secure URL for your padlock to return.
– Soft Failure A file with an insecure url of “http://dummy.xtemos.com/woodmart/wp-content/uploads/2017/06/newsletter-new.jpg?id=220” was loaded on line: 2680 of https://kulakaja.com/.
This URL will need to be updated to use a secure URL for your padlock to return.

Thanks and regards,
IDH