HTTPS mixed content, despite the fact that in the code there is no reference to http. How to solve?

Good afternoon. Faced with such a problem. When switching to https has replaced all references in the code to https. But I still shows mixed content. The console of Chrome shows one image loaded through http, but in the code it is displayed via https. I suspect that the problem is in some cache, even though it was cleaning time and it's been a couple days. Can someone tell me? here is the website https://strekoza-shop.com.ua/ control System Opencart 2.3
Thank you
June 10th 19 at 16:06
2 answers
June 10th 19 at 16:08
Solution
thanks to all, issue has been resolved. Why-the images and styles and put in an emphasis forgot about it.
June 10th 19 at 16:10
As already suggested , you still have a picture given without encryption -
strekoza-shop.com.ua/catalog/view/theme/tt_gengar6...

In the developer console you can see everything.

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