PyPS3Checker warning 008.04 trvk_prg1 Hash

I'm installing CFW for the first time on a 21xx PS3 and receiving this warning on PyPS3checker.

******* Checking Revokation_region *******
008.01 trvk_prg0 SCE : OK
008.02 trvk_prg0 Hash : OK
Size = 0x2E0
MD5 = 16CB4E101F0D6D24525B0E6F1A6681AD
Version = 3.30 (from PUP)

008.02 trvk_prg0 0xFF filled area : OK
008.03 trvk_prg1 SCE : OK
008.04 trvk_prg1 Hash : WARNING!
Size = 0x2E0
MD5 = 9F28ACB870BA760D5FB162B2B2935B32
Version = (unknown)

008.04 trvk_prg1 0xFF filled area...

PyPS3Checker warning 008.04 trvk_prg1 Hash