Up Grade Error

I up graded to the new version 2.2.1 but I got this error



Hook fn_access_restrictions_user_init is not callable



Anyone knows how to fix this, I cant access the admin or the website



Thanks

move the file addons/access_restrictions/init.php

to

addons/access_restrictions/Xinit.php

Login to your site and uninstall the access restrictions addon.