On my pages that are suppose to be secure, I am now getting "Warning: Contains Unauthenticated Content".

I have read that this is caused by hard-coding of image links, but I do not think that this is the issue. I did not have this issue when I installed Authorize.net and did all the testing there. Also, on my Log In page, there are no images aside from the ones in my "shop with confidence box", but this did not cause issues before.

I suspect it may correlate with my recent installation of PayPal Express as I noticed it following my testing. Anyone able to help me out with this? I am a newbie, so some expert eyes, and careful instructions on how to fix it for me to follow would be greatly appreciated.

ZenCart 1.3.8a
URL www.customreflection.com

Thank you