Probleme mit Variablen in Regeln

[stardriver2k]

Da dies mein erster Post hier ist werfe ich gleich mal ein fröhliches "Hallo allerseits" in die Runde Ich hoffe, ihr könnt mir bei folgendem Problem weiterhelfen:

Hi,
ich habe hier ein Problem bei der Verwendung von Variablen in Regeln:

ERROR o.o.c.s.ScriptExecutionThread[:50]- Error during the execution of rule 'GF_Living_LightOn_WindowTest': Could not invoke method: org.openhab.model.script.actions.BusEvent.sendComm and(org.openhab.core.items.Item,java.lang.Number) on instance: null

Das komische ist, dass die Regel ab und zu mal zieht, ein anderes mal wiederum nicht.

Regel:
import org.openhab.core.types.*

var string varLight_GF_Living_Lightchain
var string varLight_GF_Living_Star
var string varLight_GF_Living_Lamp
var string varHue_GF_Living_Couch
var string varHue_GF_Living_Table
var string varHue_GF_Living_TV

rule "GF_Living_LightOff_Window"
when
Item Window_GF_Living changed from CLOSED to OPEN
then
if (Insektenschutz_GF_Living.state == ON)
{
varLight_GF_Living_Lightchain = Light_GF_Living_Lightchain.state
sendCommand(Light_GF_Living_Lightchain, OFF)

varLight_GF_Living_Star = Light_GF_Living_Star.state
sendCommand(Light_GF_Living_Star, ON)

varLight_GF_Living_Lamp = Light_GF_Living_Lamp.state
sendCommand(Light_GF_Living_Lamp, OFF)

varHue_GF_Living_Couch = Hue_GF_Living_Couch.state
sendCommand(Hue_GF_Living_Couch, OFF)

varHue_GF_Living_Table = Hue_GF_Living_Table.state
sendCommand(Hue_GF_Living_Table, OFF)

varHue_GF_Living_TV = Hue_GF_Living_TV.state
sendCommand(Hue_GF_Living_TV, OFF)
}
end

rule "GF_Living_LightOn_Window"
when
Item Window_GF_Living changed from OPEN to CLOSED
then
if (Insektenschutz_GF_Living.state == ON)
{
sendCommand(Light_GF_Living_Lightchain, varLight_GF_Living_Lightchain)
sendCommand(Light_GF_Living_Star, varLight_GF_Living_Star)
sendCommand(Light_GF_Living_Lamp, varLight_GF_Living_Lamp)
sendCommand(Hue_GF_Living_Couch, varHue_GF_Living_Couch)
sendCommand(Hue_GF_Living_Table, varHue_GF_Living_Table)
sendCommand(Hue_GF_Living_TV, varHue_GF_Living_TV)
}
end


Log:

Türe auf (wobei ich hier die Türe durch einen Testschalter ersetzt habe, damit ich nicht dauern rennen muss):
12:14:15.391 DEBUG o.o.p.r.internal.RRD4jService[:105]- Stored 'Light_GF_Insect_Test' with state 'OFF' in rrd4j database
12:14:15.398 DEBUG o.o.p.r.internal.RRD4jService[:121]- Stored 'Light_GF_Insect_Test' with state 'ON' in rrd4j database
12:14:15.440 DEBUG o.o.m.r.i.engine.RuleEngine[:285]- Executing rule 'GF_Living_LightOff_WindowTest'
12:14:16.400 INFO o.o.b.e.internal.ExecBinding[:313]- executed commandLine '/opt/brematic/lichterkette_off.sh'
12:14:17.271 DEBUG o.o.p.r.internal.RRD4jService[:105]- Stored 'Light_GF_Living_Star' with state 'OFF' in rrd4j database
12:14:17.279 DEBUG o.o.p.r.internal.RRD4jService[:121]- Stored 'Light_GF_Living_Star' with state 'ON' in rrd4j database
12:14:17.353 INFO o.o.b.e.internal.ExecBinding[:313]- executed commandLine '/opt/brematic/stern_on.sh'
12:14:17.664 INFO o.o.b.e.internal.ExecBinding[:313]- executed commandLine '/opt/brematic/licht_stehlampe_off.sh'
12:14:17.979 DEBUG o.o.b.hue.internal.HueBinding[:68]- Hue binding received command 'OFF' for item 'Hue_GF_Living_Couch'
12:14:18.016 DEBUG o.o.b.h.i.hardware.HueBulb[:237]- Sent message: '{"on":false}' to http://192.168.178.50/api/openHABRuntime/lights/3/state
12:14:18.358 DEBUG o.o.b.hue.internal.HueBinding[:68]- Hue binding received command 'OFF' for item 'Hue_GF_Living_Table'
12:14:18.392 DEBUG o.o.b.h.i.hardware.HueBulb[:237]- Sent message: '{"on":false}' to http://192.168.178.50/api/openHABRuntime/lights/4/state
12:14:18.668 DEBUG o.o.b.hue.internal.HueBinding[:68]- Hue binding received command 'OFF' for item 'Hue_GF_Living_TV'
12:14:18.701 DEBUG o.o.b.h.i.hardware.HueBulb[:237]- Sent message: '{"on":false}' to http://192.168.178.50/api/openHABRuntime/lights/1/state

Türe wieder zu:
12:16:13.515 DEBUG o.o.p.r.internal.RRD4jService[:105]- Stored 'Light_GF_Insect_Test' with state 'ON' in rrd4j database
12:16:13.539 DEBUG o.o.p.r.internal.RRD4jService[:121]- Stored 'Light_GF_Insect_Test' with state 'OFF' in rrd4j database
12:16:13.579 DEBUG o.o.m.r.i.engine.RuleEngine[:285]- Executing rule 'GF_Living_LightOn_WindowTest'
12:16:13.895 ERROR o.o.c.s.ScriptExecutionThread[:50]- Error during the execution of rule 'GF_Living_LightOn_WindowTest': Could not invoke method: org.openhab.model.script.actions.BusEvent.sendComm and(org.openhab.core.items.Item,java.lang.Number) on instance: null

Was kann das sein? der Fehler tritt wie gesagt nur sporadisch und auch nur bei der "Türe zu, Licht im alten Zustand wieder an" Regel auf