I am also getting this error. I have 1.3 version of the plugin, using wordpress 4.6.1.
I am using the shortags version, and “php echo” way to display this plugin but the same error shows up.
Warning: Invalid argument supplied for foreach() in D:\wamp\www\wordpress_test\wp-content\plugins\easy-simple-instagram\simple-instagram.php on line 432
I am under wamp localhost though.
Edit: Using it as a Widget, also gets me the error above.
