I’ve sent some test pings, your system is communicating by broadband wifi connection, but not by cellular at the moment. You can send commands to the system and see the status of the system in ADC because wifi is connected.
The first step would be to power down the system completely, unplug transformer, open the panel, unplug battery. Then remove the cell sled, make sure there are no obstructions and reinsert the cell sled making sure it is firmly installed.
Wait at least two minutes before plugging the battery back in, closing the panel, then plugging in the transformer.