Transmission acceleration issues

First of all the check engine light like has constantly been on for months now. The problem is when I start the car and put it in drive the transmission isn't putting the car in gear to drive, it won't move forward. I tried to put it in the other two gears after drive to see if I could accelerate forward that way but the car still wouldn't move, only the engine will rev up. But if I put it in reverse it will move backwards. The other thing I noticed is that the display on the dashboard that will light up whatever gear you put the car in, well it will light up in every gear I put it in accept drive. Can you please tell me what the problem is? Does the car need a new transmission or could it be an electrical fuse issue?