Not sure how much I can help you here as I dont know (or own :smileyhappy: a 1321X-SRB board.
Anyway, the error you get is about the reset vector, which is specified in the prm file with "VECTOR 0 _Startup".
If you uncomment this line, you probably will be able to flash it, but then the question is, how does you app start? Is there another vector address to use instead?
(if so, use VECTOR ADDRESS 0xABCD _Startup)
Well I just dont know.
Daniel
PS: The serial monitor does actually map the reset vector to another address than 0xFFFE, but it does automatically perform this remapping while downloading, as far as I known.