read again the readme.txt file example ...

you have 2 extra argument in ADDCUSTOMCHAR, here you should have
ADDCUSTOMCHAR CHR_CUSTOM_0, 0x04, 0x00, 0x00, 0x00, 0x00
not
ADDCUSTOMCHAR CHR_CUSTOM_0, 0x04, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00