fail in the controller PM891 redundant

hi, in the controller redundant have a fail that is impossible remove with reset. In the logs say as follows:
W 2017-12-29 11:20:50.838 On Unit= 1 HWError acmPF_P2C 0000 See HWTree Error 16#00000010 16#00000000
E 2018-01-03 13:49:19.115 RemoveHangingInterrupt 0x00000002
E 2018-01-03 13:49:19.115 ErrorHandler PM: 4113 Hang CEX IRQ The lower PM has been shut down (1,2)
E 2018-01-03 13:49:19.117 4008 P:CEXShutdown Lower CPU.

In attached, the last register of the fail.
Regards