LED Trading 4 Button Switch kicks SONOFF-01MINIZB

Led Trading (FOH) 4 channel switch kicks my SONOFF-01MINIZB from ZigBee Network, when i push a button.

In Phoscon the switch is visible.
In DeConz-GUI the switch is not visible.

immediately when i push one of the 4 buttons, the SONOFF-01MINIZB, loses the connection.
I have then to pair them in Phoscon again.

what data do you need?

I have disconnected the LED Trading switches from my zigbee network.

regards maik