To clear fatal faults you need to press enter, scroll to 10, enter, set 0 to 1, enter.
Then press reset button or power cycle.

More info on 2138 fault; E_SHAFT_CAR_RELEVELING_ZONE_SIGNAL_INVALID
The signal indicating the car releveling zone is invalid (e.g.
inconsistent). Failure at hoistway information.

C1:A car releveling zone indicator is missing or not at the
correct position
A1:Check correct position of the corresponding indicators
(e.g. alignment of magnets, vanes)

C2:A car releveling zone sensor is defective
A2:Check functionality of corresponding sensor (e.g. PHS,
PHNR_U, PHNR_D). Replace it if necessary.

C3:A car releveling zone sensor signal is faulty
A3:Check general wiring of corresponding sensors (e.g.
PHNR_U, PHNR_D). Check at optical sensors (e.g. PHS,
PHNR_U. PHNR_D) vanes and sensors for dirt and proper
shielding from sunlight (e.g. at glass shaft).

C4:Bad data transmission
A4:Some hoistway information system transfer their data via
data bus. Check data bus (e.g CAN) for correct data
transmission (e.g. bad shielding of data wire).