Reprogram the FPGA encryption key of the V2M-MPS2-0318C board

We bought the V2M-MPS2-0318C board about two years ago.
Now it cannot load FPGA images with such boot log:

ARM V2M-MPS2 CMSIS-DAP Firmware v2.2.0
Build Date: Oct 21 2016

MotherBoard Revision C Variant A
MotherBoard Serial Number 0275560101-0128

ARM V2M Boot Loader v1.0.0

Switching on main power...

Configuring motherboard (rev C, var A)...

Reading Board File \MB\HBI0263C\AN505\an505_v4.txt

Configuring FPGA from file \MB\HBI0263C\AN505\an505_v4.rbe

ERROR: FPGA did not configure.

Failed to program FPGA...

Powering down...

It seems this board needs to reprogram the encryption key (V2M MPS2+: 'ERROR: FPGA did not configure.' - Arm Development Platforms forum - Support forums - Arm Community).
Before contacting Arm, they suggest us contact the distributor first.
Could you please give any instruction to repair this problem? Thank you very much.