Adding a photo from Facebook or Instagram does not work
Be sure that the PHP function getimagesize() is enabled on your web server. This function is part of the GD library, which is required for the plugin. Please contact your server provider how to enable it. We can not do that for you.
Error with images when using different functions
If you are getting following error:
Solution 1 - Disable Photon in Jetpack
If the "Photon" option is enabled in Jetpack, it will add a sub-domain (e.g. i0.wp.com) to every image URL. You need to disable this option, otherwise it does not work.
Solution 2 - Reset Image Soruces
This means your images are not hosted under the same domain or protocol. Because of a security reason in your browser, it only works with images hosted under the same domain and protocol. You can reset the image sources under "Fancy Products" and "Fancy Designs" admin.
You changed your website/domain to SSL and forgot to update the WordPress and Site Address to https.