Problem solved reconnected the tuya api and it’s working again.

Or, you could connect the wires and put the (relay) switch near the light fixture(or inside) this way you have neutral available. And use a zigbee wall switch.

Not the most fancy solution, but you could use some high tack glue. Just a few very small dots will do the trick. And if you need to take the switch off just take a utility knife. Like i said not elegant…