Problem with ebus binding for Vaillant VCR 470

It seems that there is an error in the ebus configuration for my Vaillant VCR 470. I don’t know which item causes the error but the error message tells, that there is a numeric value expected but the received value is zero followd by a colon:

2023-09-16 00:11:37.140 [ERROR] [.csdev.ebus.core.EBusEbusdController] - Error while parsing ebusd response: :ERR: invalid numeric argument
2023-09-16 00:11:37.140 [ERROR] [.csdev.ebus.core.EBusEbusdController] - error!
de.csdev.ebus.core.EBusDataException: Unable to send telegram FF 15 B5 09 03 0D 44 00 80 after 2 attempts ... [ERROR: TOO_MANY_ATTEMPS, DATA: FF 15 B5 09 03 0D 44 00 80]
	at de.csdev.ebus.core.EBusQueue.checkSendStatus(EBusQueue.java:117) ~[?:?]
	at de.csdev.ebus.core.EBusEbusdController$EBusSenderThread.run(EBusEbusdController.java:112) [?:?]
	at java.lang.Thread.run(Thread.java:833) ~[?:?]
2023-09-16 00:11:37.141 [ERROR] [.csdev.ebus.core.EBusEbusdController] - Error Trace!
java.lang.NumberFormatException: For input string: "0:" under radix 16
	at java.lang.NumberFormatException.forInputString(NumberFormatException.java:67) ~[?:?]
	at java.lang.Integer.parseInt(Integer.java:668) ~[?:?]
	at java.lang.Integer.valueOf(Integer.java:973) ~[?:?]
	at de.csdev.ebus.utils.EBusUtils.toByteArray2(EBusUtils.java:323) ~[?:?]
	at de.csdev.ebus.core.EBusEbusdController.parseLine(EBusEbusdController.java:219) ~[?:?]
	at de.csdev.ebus.core.EBusEbusdController.run(EBusEbusdController.java:286) ~[?:?]

How can I find out which item causes the error?
Afterwards, how can I fix it?

Any hint is welcome.