Used this and now its crashed.
sudo rm --recursive /var/lib/openhab2/cache/*
sudo rm --recursive /var/lib/openhab2/tmp/*
2018-05-20 23:13:32.137 [WARN ] [raf.features.internal.osgi.Activator] - Error starting activator
java.io.IOException: Unexpected end of input at 1:1
at org.apache.karaf.features.internal.util.JsonReader.error(JsonReader.java:337) [9:org.apache.karaf.features.core:4.1.3]
at org.apache.karaf.features.internal.util.JsonReader.expected(JsonReader.java:331) [9:org.apache.karaf.features.core:4.1.3]
at org.apache.karaf.features.internal.util.JsonReader.readValue(JsonReader.java:93) [9:org.apache.karaf.features.core:4.1.3]
at org.apache.karaf.features.internal.util.JsonReader.parse(JsonReader.java:58) [9:org.apache.karaf.features.core:4.1.3]
at org.apache.karaf.features.internal.util.JsonReader.read(JsonReader.java:52) [9:org.apache.karaf.features.core:4.1.3]
at org.apache.karaf.features.internal.region.DigraphHelper.readDigraph(DigraphHelper.java:90) [9:org.apache.karaf.features.core:4.1.3]
at org.apache.karaf.features.internal.region.DigraphHelper.loadDigraph(DigraphHelper.java:70) [9:org.apache.karaf.features.core:4.1.3]
at org.apache.karaf.features.internal.osgi.Activator.doStart(Activator.java:131) [9:org.apache.karaf.features.core:4.1.3]
at org.apache.karaf.util.tracker.BaseActivator.run(BaseActivator.java:242) [9:org.apache.karaf.features.core:4.1.3]
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) [?:?]
at java.util.concurrent.FutureTask.run(FutureTask.java:266) [?:?]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [?:?]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [?:?]
at java.lang.Thread.run(Thread.java:748) [?:?]