CSS and JS files causing insecure content message in https

I've changed all my image links to make them come up secure but I still have 3 files showing up in Chrome as insecure. It messes up the formatting on my checkout pages.
They are:

• wp-content/themes/colorwaytheme/css/Default.css?ver=3.8.1 doesn't exist, so your 404 page is being returned over HTTP -- it's the insecure content; fix your theme so that it either has Default.css or doesn't try to load it
• wp-content/themes/colorwaytheme-child/style.css has a hard-coded reference to http://saferide4kids.com/wp-content/themes/colorwaytheme/style.css -- remove the http: bit and leave //
• wp-content/themes/colorwaytheme/js/jquery.flexslider-min.js?ver=3.8.1 also doesn't exist, same 404 deal

I can't find them coded anywhere on the page template to be able to go in and change the link tag. Are there any other ideas to recode these three files so my https pages show secure?

 

To view the https://saferide4kids.com/checkout/ you'll have to put something in the cart.

 

Hello,

For your 1st and 3rd issue
Download updated version of ColorWay theme from your members area and upload it.

and for your 2nd issue.

replace your current child theme with the attach one

 

Thank you Gourav for your response.