Error in Simple Instagram

Warning: Invalid argument supplied for foreach() in /var/www/vhosts/w8pd-ngw2.accessdomain.com/mbts.edu/wp-content/plugins/easy-simple-instagram/simple-instagram.php on line 432

I’ve started receiving the following warning. I’ve uninstalled the plugin and reinstalled, have reconnected the account. I can confirm the account has photos: https://www.instagram.com/midwesternseminary/

What is causing this?

The page I need help with: [log in to see the link]