Whole side of a car blinkers wont work.

Right side of a Opel Astra 2001 car turn lights not flashing (both back and front) but the signal on the dash is working fine.

Left side is all perfect. Just the right side.

Im sure its not the bulbs as there would be a problem only maybe in the front or back of the side, but now its both.

Is there a problem I could fix at home to save up money?

What I figured out so far.

Also the back flash light works when smacking it, but as long as car moves it stops working. Bad connection there? Front flash right doesnt work when smacking it