CUL not working after restore

Hi,

I had a full system crash and recovered only the conf and userdata. Now I got the following error:

    2018-05-14 17:09:02.290 [ERROR] [org.apache.felix.configadmin        ] - [org.osgi.service.event.EventHandler, org.osgi.service.cm.ManagedService, id=349, bundle=218/mvn:org.openhab.binding/org.openhab.binding.intertechno/1.11.0]: Unexpected problem updating configuration org.openhab.culintertechno

java.lang.NullPointerException: null

	at org.openhab.binding.intertechno.internal.CULIntertechnoBinding$1.open(CULIntertechnoBinding.java:64) [218:org.openhab.binding.intertechno:1.11.0]

	at org.openhab.io.transport.cul.CULLifecycleManager.open(CULLifecycleManager.java:92) [219:org.openhab.io.transport.cul:1.11.0]

	at org.openhab.io.transport.cul.CULLifecycleManager.config(CULLifecycleManager.java:74) [219:org.openhab.io.transport.cul:1.11.0]

	at org.openhab.binding.intertechno.internal.CULIntertechnoBinding.updated(CULIntertechnoBinding.java:147) [218:org.openhab.binding.intertechno:1.11.0]

	at org.apache.felix.cm.impl.helper.ManagedServiceTracker.updated(ManagedServiceTracker.java:189) [7:org.apache.felix.configadmin:1.8.16]

	at org.apache.felix.cm.impl.helper.ManagedServiceTracker.updateService(ManagedServiceTracker.java:152) [7:org.apache.felix.configadmin:1.8.16]

	at org.apache.felix.cm.impl.helper.ManagedServiceTracker.provideConfiguration(ManagedServiceTracker.java:85) [7:org.apache.felix.configadmin:1.8.16]

	at org.apache.felix.cm.impl.ConfigurationManager$ManagedServiceUpdate.provide(ConfigurationManager.java:1479) [7:org.apache.felix.configadmin:1.8.16]

	at org.apache.felix.cm.impl.ConfigurationManager$ManagedServiceUpdate.run(ConfigurationManager.java:1435) [7:org.apache.felix.configadmin:1.8.16]

	at org.apache.felix.cm.impl.UpdateThread.run0(UpdateThread.java:141) [7:org.apache.felix.configadmin:1.8.16]

	at org.apache.felix.cm.impl.UpdateThread.run(UpdateThread.java:109) [7:org.apache.felix.configadmin:1.8.16]

	at java.lang.Thread.run(Thread.java:748) [?:?]

My config looks like:

############################# Intertechno Binding     ###################################
# Devicename to use (mandatory)
# Example /dev/ttyACM0
device=serial:/dev/ttyAMA0


# How often should the command be repeated? (optional)
# See http://culfw.de/commandref.html for details
repetitions=6

# How long should one pulse be? (optional)
# See http://culfw.de/commandref.html for details
wavelength=420

My ttys are looking like:

crw-rw---- 1 root dialout 166,  0 May 14 17:13 /dev/ttyACM0
crwxrwxrwx 1 root dialout 204, 64 May 14 16:36 /dev/ttyAMA0
crw------- 1 root root      5,  3 May 14 16:36 /dev/ttyprintk

I also checked the group of dialout

dialout:x:20:openhabian,openhab

What can I do? Did I forgot something?

Greetz
HFM