how can i fix the indicators to my 2000 ford fiesta derived van?

the indicators have stopped working on my ford fiesta van (2000) x reg i have changed the stalks on the steering column i have changed fuses in both the main fuse box in the vehicle and the relay fuse box in the engine bay my hazards work wipers work and light work oh and changed the fuse n the stalk too the only thing that does not work is the indicatrs i have also checked the earths they are fine and so are the bulbs and connectors

can anyone help me