Central Locking Problems

My 2012 Freelander 2 has developed the fault of the central locking is not working with keys which have been both checked okay, I cannot lock using keys but internal locking switches working, all fuses have also been checked, locks and unlocks with external key
Only work I have done is fitting 2 footwell LEDs to existing connectors
HELP

Do the lights and tailgate open when pressing the button on the remote?

Have you removed the LED footwell lights to see if it starts working again?

I have removed the footwell bulbs still not locking
nothing happens when pressing remote

Suspect remote receiver - located above the rear interior light