Instagram has implemented some changes to their API which affect our integration and will require updating any of your templates currently using the Instagram gadget. Going forward Instagram will not allow referencing content from any account other than your own. We have added an option to the Instagram gadget called 'My most recent posts' and deprecated all other options. It's also recommended to un-link your Instagram account from your RevelDigital account and then re-link following the instructions in your KB article here: http://support.reveldigital.com/kb/advanced-topics/instagram-howto
Sorry for the inconvenience and we will continue to work with Instagram on getting more of the content features re-implemented if at all possible.