moving wordpress and plugin dont working

hello, I moving my website from one folder to the root of the server and the plugin stopped calling instagram pictures.
before he was http://www.exemple.com / folder and now modified the index file to call “require (dirname (__ FILE__) ‘/folder/ wp-blog-header.php’.);” for your site to be seen at the address principal, after that the plugin stopped working.

I should not change the url of the redirection of the application:
http://www.exemple.com/folder/wp-admin/options-general.php?page=easy-instagram

sorry for my bad english.

http://wordpress.org/plugins/easy-instagram/