UPD: Didn't visit for some time. Looks like you have a bugtracker now, so I guess this can be closed/ignored.
Initial error is gone, but I see similar new one in 3.2.1:
Error: Invalid argument supplied for foreach() in '/usr/local/www/fengoffice/application/controllers/TaskController.class.php' on line 1501 (error code: 2)