Hello, I'm kinda new here...

Well my problem is when I turn on my car I have to accelerate while it is in Parking position otherwise the motor will turn off again (everything resets... the radio shows 12 o'clock even if I configured the hour before) and then I have to take out the key and start again.

Does anyone knows what may cause this? Some months ago I took it to service center to change the hydraulics and now this... I have checked everything, maybe it's a problem with the battery...