Online status of hospital Emergency Departments

The WA Department of Health is providing a near real time web display of the status of Emergency Departments. This shows: Ambulance diverted, Triage 4 patients average waiting time (minutes), Number of patients waiting to be seen in ED and Total patients in ED for each hospital. Also available Hospital beds are also shown (but from a few days ago). If this information is to be of use, it must be provided reliably. Reports over time are also offered, but when I tried "ED attendances weekly activity" an error message resulted: "There is no row at position 7. at System.Data.RBTree`1.GetNodeByIndex(Int32 userIndex) ...".