Hey, I know it’s been a while since you posted, but if you’re still having the issue, or if anyone else stumbles on the post like I did, here’s the solution I found:
1. Go to the Plugins > Editor section of your wordpress back-end
2. Select ‘Simple Instagram Slideshow’ from the drop-down on the top right & click the ‘Select’ button
3. look for a link on the right that says ‘simple-instagram-slideshow/timthumb.php’ & click it. (It was on the very bottom for me)
4. In that document, look for the line that says:
if(! defined('ALLOW_ALL_EXTERNAL_SITES') ) define ('ALLOW_ALL_EXTERNAL_SITES', false); // Less secure.
(It’s fairly close to the top, line 33 if you feel like counting)
5. change ‘false’ to ‘TRUE’ (without the quotes). So it should read:
if(! defined('ALLOW_ALL_EXTERNAL_SITES') ) define ('ALLOW_ALL_EXTERNAL_SITES', TRUE); // Less secure.
6. click ‘Update File’
That should do it!
Another thing that was causing me issues was that I changed domains, and the domain that you enter when you create the client id on instagram is the only domain that’s allowed to get the images. So if you’ve recently change domains, you’ll want to generate a new client ID
Would be more secure to add “cdninstagram.com” to $ALLOWED_SITES!
