TPLink K115 is activating the relay constantly extremely fast, the orange light is flashing constantly also very fast. Its activating the relay multiple times a second constantly when powered. I had my printer plugged into it.

I got four of these on amazon sale a while back, the amount of people experiencing this same error doesn't inspire me with confidence, I've unplugged the others now.

Edit. Tried resetting by holding down the button for 30 seconds, it is unresponsive.