I got this error since the last DEV version. It make the streams unavailable and unusable. Is there a workaround ?!?

Fatal error: Call to a member function getPlugin() on a non-object in /home/sitename/www/www/sites/all/modules/heartbeat/modules/heartbeat_plugins/heartbeat_plugins.module on line 358

The problem occur when you display the page of an heartbeat streams.

If i create a ticket with a given user, and role "anonymous" doesnt have permissions for "access $client tickets" nor "administer support", the validation complains that it must be assigned