@ADDs Is your device is a 3 gang switch?
This driver has a fingerprint for the 2 gang version, if you confirm I will add your 3 gang switch in the driver.
What happens when you press the Initialize button? Do you have 3 child devices created?
Please make sure the Debug option is turned on, then press the on/off buttons on n the device web page and if it doesn’t work, copy and paste the debug logs.