I keep getting this error with this module.
Notice: Undefined property: stdClass::$nid in node_access()
As soon as I disable the module the error goes away. This link may provide some answer to the cause of this error in this module.
http://drupal.org/node/1230448?mode=2&sort=2

Is this a fix that can be implemented on Drupal 7 version.

It's a great module, just need to work without errors.