I don’t see a myQ device with that serial number, but I did see another one, and I have sent you a PM with that serial number. Is that the one you need us to remove?
Steps to clear and reconnect a myQ device to the network can be found here:
If it still appears to be blocked, you may want to reach out to your ISP if you rent your router from them or the manufacturer of your router for assistance in unblocking the device.