2013 Ford mondeo TDCi transmission limited fucntion

[adilanees]

i got ford mondeo 2013 tdci. when I was proceeding to the traffic light it was not downing the gears. and eventually died on me. I start it up immediately and the transmission limited function came up on the screen. there was no engine light. after that, it wasn't changing gears properly. was no error codes. later that day it start giving up the engine light and the p0700 code was stored. after checking all the grounds and relays it did give me the error code of p068a along with the p0700 code. any suggestions please.