Error Message every 30min - fibaro wall plug fgwp101

Add-ons Bindings
,
1

Hi,

every 30min I get the following error messages for every fibaro wall plug (fgwp101) in my zwave network.

14:09:09.591 [ERROR] [ocol.ZWaveController$ZWaveSendThread] - NODE 6: Timeout while sending message. Requeueing - 2 attempts left!
14:09:09.592 [ERROR] [l.serialmessage.SendDataMessageClass] - NODE 6: Got an error while sending data. Resending message.
14:09:14.600 [ERROR] [ocol.ZWaveController$ZWaveSendThread] - NODE 6: Timeout while sending message. Requeueing - 1 attempts left!
14:09:14.601 [ERROR] [l.serialmessage.SendDataMessageClass] - NODE 6: Got an error while sending data. Resending message.
14:09:19.618 [ERROR] [ocol.ZWaveController$ZWaveSendThread] - NODE 6: Timeout while sending message. Requeueing - 0 attempts left!
14:09:19.619 [ERROR] [l.serialmessage.SendDataMessageClass] - NODE 6: Got an error while sending data. Resending message.
14:09:24.634 [WARN ] [ocol.ZWaveController$ZWaveSendThread] - NODE 6: Too many retries. Discarding message: Message: class=SendData[0x13], type=Request[0x00], priority=Get, dest=6, callback=90, payload=06 03 71 04 00

Any idea how to fix this?

Detailed debug log: debug.pdf (60.7 KB)

thx,
Tom