@SystemSalamence, I spent some time debugging your Product Card and I’ve narrowed it down to your image.
What you have implemented:
http://pfq.link/?J1T=004000ccff99300300.png
I am not sure the exact reason, but it is probably because http://pfq.link/robots.txt does not return a valid robots.txt file
The short URL ultimately resolves to http://pokefarm.com, which does have a robots.txt. If you can modify your image URL to use the full URL like below it will work:
http://pokefarm.com/img/script/pokemon?004000ccff99300300J1T
That might be your easiest solution. I have tested your meta data with the full image URL and it does work.