Icons missing

Hi.

I have gone through the forum but cannot find the solution though.

I have encountered a little annoying issue,
all the icons appear to be missing and I have no idea why.

The funnies part is when I open my website https://pvcfonster.expert ( it’s still being built ?? ) the icons appear to be missing, but when I use the server address of wher the domain is linked up with https://serwer1779092.home.pl the icons are displayed correctly.

any idea how to fix it and what’s causing the problem?

any help would be very much appreciated.

Thanks in advance.

Best regards