INFO - LoggingAdvice.invoke(115) |2019-04-25 14:51:40,102| In method ImportService.updateReleaseVersion. Arguments: Import=org.openmrs.module.openconceptlab.Import@27c, String=2, 
INFO - LoggingAdvice.invoke(155) |2019-04-25 14:51:40,115| Exiting method updateReleaseVersion
INFO - LoggingAdvice.invoke(115) |2019-04-25 14:51:40,118| In method ImportService.updateOclDateStarted. Arguments: Import=org.openmrs.module.openconceptlab.Import@27c, Date=Thu Apr 25 14:51:31 EAT 2019, 
INFO - LoggingAdvice.invoke(155) |2019-04-25 14:51:40,120| Exiting method updateOclDateStarted
INFO - LoggingAdvice.invoke(115) |2019-04-25 14:51:40,125| In method ImportService.updateSubscriptionUrl. Arguments: Import=org.openmrs.module.openconceptlab.Import@27c, String=https://api.demo.openconceptlab.org/users/admin/collections/M, 
INFO - LoggingAdvice.invoke(155) |2019-04-25 14:51:40,128| Exiting method updateSubscriptionUrl
INFO - LoggingAdvice.invoke(115) |2019-04-25 14:51:40,569| In method ConceptService.saveConcept. Arguments: Concept=Concept #null, 
INFO - LoggingAdvice.invoke(155) |2019-04-25 14:51:40,893| Exiting method saveConcept
INFO - LoggingAdvice.invoke(115) |2019-04-25 14:51:40,905| In method ConceptService.saveConcept. Arguments: Concept=Concept #null, 
INFO - LoggingAdvice.invoke(155) |2019-04-25 14:51:40,943| Exiting method saveConcept
INFO - LoggingAdvice.invoke(115) |2019-04-25 14:51:40,957| In method ConceptService.saveConcept. Arguments: Concept=Concept #null, 
INFO - LoggingAdvice.invoke(155) |2019-04-25 14:51:41,001| Exiting method saveConcept
INFO - LoggingAdvice.invoke(115) |2019-04-25 14:51:41,010| In method ConceptService.saveConcept. Arguments: Concept=Concept #null, 
INFO - LoggingAdvice.invoke(155) |2019-04-25 14:51:41,051| Exiting method saveConcept
INFO - LoggingAdvice.invoke(115) |2019-04-25 14:51:41,062| In method ConceptService.saveConcept. Arguments: Concept=Concept #null, 
INFO - LoggingAdvice.invoke(155) |2019-04-25 14:51:41,100| Exiting method saveConcept
ERROR - ImportTask$1.run(77) |2019-04-25 14:51:41,105| Failed to import concept org.openmrs.module.openconceptlab.client.OclConcept@25786f98[externalId=<null>]
org.openmrs.module.openconceptlab.importer.ImportException: Cannot create concept https://api.demo.openconceptlab.org/users/admin/sources/M/concepts/db7900b1-aabf-4ca8-bf7a-080135b6a889/5cc1958fae2d620053c9f2fc/
	at org.openmrs.module.openconceptlab.importer.Saver.saveConcept(Saver.java:105)
	at org.openmrs.module.openconceptlab.importer.ImportTask$1.run(ImportTask.java:73)
	at org.openmrs.api.context.Daemon$5.run(Daemon.java:286)
Caused by: java.lang.NullPointerException
	at java.base/java.util.concurrent.ConcurrentHashMap.get(ConcurrentHashMap.java:936)
	at org.openmrs.module.openconceptlab.CacheService.getConceptByUuid(CacheService.java:118)
	at org.openmrs.module.openconceptlab.importer.Saver.toConcept(Saver.java:174)
	at org.openmrs.module.openconceptlab.importer.Saver.saveConcept(Saver.java:103)
	... 2 more
ERROR - ImportTask$1.run(77) |2019-04-25 14:51:41,113| Failed to import concept org.openmrs.module.openconceptlab.client.OclConcept@5509f181[externalId=<null>]
org.openmrs.module.openconceptlab.importer.ImportException: Cannot create concept https://api.demo.openconceptlab.org/users/admin/sources/M/concepts/9c4dece3-6d69-435b-a9ca-c37c4f3f3d6e/5cc19ef0ae2d620053c9f32c/
	at org.openmrs.module.openconceptlab.importer.Saver.saveConcept(Saver.java:105)
	at org.openmrs.module.openconceptlab.importer.ImportTask$1.run(ImportTask.java:73)
	at org.openmrs.api.context.Daemon$5.run(Daemon.java:286)
Caused by: java.lang.NullPointerException
	at java.base/java.util.concurrent.ConcurrentHashMap.get(ConcurrentHashMap.java:936)
	at org.openmrs.module.openconceptlab.CacheService.getConceptByUuid(CacheService.java:118)
	at org.openmrs.module.openconceptlab.importer.Saver.toConcept(Saver.java:174)
	at org.openmrs.module.openconceptlab.importer.Saver.saveConcept(Saver.java:103)
	... 2 more
INFO - LoggingAdvice.invoke(115) |2019-04-25 14:51:41,117| In method ImportService.saveItems. Arguments: Iterable=[org.openmrs.module.openconceptlab.Item@15c4c81e[itemId=<null>,uuid=82372AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA], org.openmrs.module.openconceptlab.Item@6300dd3a[itemId=<null>,uuid=82389AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA], org.openmrs.module.openconceptlab.Item@c7d3669[itemId=<null>,uuid=82390AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA], org.openmrs.module.openconceptlab.Item@2fc1cd9f[itemId=<null>,uuid=82392AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA], org.openmrs.module.openconceptlab.Item@1c766441[itemId=<null>,uuid=82393AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA], org.openmrs.module.openconceptlab.Item@79fa93f8[itemId=<null>,uuid=<null>], org.openmrs.module.openconceptlab.Item@1cd13cd0[itemId=<null>,uuid=<null>]], 
INFO - LoggingAdvice.invoke(155) |2019-04-25 14:51:41,127| Exiting method saveItems