- Barcode scanner not connected
- Robots could not get bin in cell
- Robot stopped in Recovery mode and system is Stopped
- Port has stopped unexpectedly
- Beeping sound alarm from the grid
- Blinking robot light
- Error: System can not be set to mode Running
- Robot unable to pick bin from port
- Port error: Alarm activated and bin not returned to grid
- Grid door won't open
- Bin is stuck in the grid and fails to come to the port