c1ioo computer can not connect to the framebuilder and everything is red in the status for this machine, C1:FEC-33_CPU_METER is not moving.
EDIT by KI:
We rebooted the c1ioo machine, but none of the ftont end model came back. It looked like they failed the burt process for some reasons according to dmesg.
Then we restarted each front end model one by one, and every time after immediately we restarted it we hit the 'BURT' button in the GDS screen.
Everyone came back to the normal operation.