dashboard off totally, no gas no engine work ?

Hi all dear focus fighters.
Im bagin u please give me a poss advice about problem that im suffering with my dear ford focus 1.8tdci 2005. I love this car but all services here couldnt help me they just steel money of me cause I think they cant get it fixed, I sleep well for a peroid when I changed it with a used one and it worked well for 6 months than it started again with the same problem! Im driving it and than instantaniosly it came up with all the lamps on in the dashboard and no gas pedal works even the engine runs normally but no power at the peda!