1998 BMW 318 CENTRAL LOCKING SYSTEM AND IGNITION

Electrical problem
1998 BMW 318 Two Wheel Drive Manual

HI
MY CENTRAL LOCKING SYSTEM WONT RESPOND TO THE KEY WHEN I PRESS THE LOCK BUTTON, EVEN WHEN I LOCK THE DRIVERS DOOR THE OTHER DOORS DONT LOCK TOO, THE SAME APPLIES WHEN I LOCK OR UNLOCK AT THE TRUNK. THE BATTERY IS GOOD AND THE LIGHT FLASHES O NTHE KEY WHEN I PRESS.
MY SECOND QUSETION IS THAT MY IGNITION WONT TURN, WHEN I PUT IN THE KEY IT WONT TURN TO ON OR START THE ENGINE. IT FEELS LOCKED I HAVE TRIED TURING THE STEERING WHEEL THINKING IT ON WHEEL LOCK BUT STILL NO RESPONSE. HELP ME IM SO FRUSTRATED BY THESE PROBLEMS.