On any server / Bamboo configuration server goes down after admin user creation.
New server, clean install Bamboo 6.3.1, empty PostreSQL database, new Bamboo home directory.
There is an exception in atlassian-bamboo.log
2018-01-22 13:40:53,975 FATAL [localhost-startStop-1] [BuildNumberInHomeMatchesDatabase] Bamboo home directory comes from version 6.2 or older (build number [60306]) but database does not contain build number
2018-01-22 13:40:53,976 ERROR [localhost-startStop-1] [BootstrapUpgradeManagerImpl] Task 3 failed
java.lang.NullPointerException
at com.atlassian.bamboo.spring.StrutsContainer.lambda$static$0(StrutsContainer.java:15)
at io.atlassian.fugue.Suppliers$MemoizingSupplier.get(Suppliers.java:161)
at com.atlassian.struts.DefaultTextProvider.getTextProvider(DefaultTextProvider.java:188)
at com.atlassian.struts.DefaultTextProvider.getText(DefaultTextProvider.java:39)
at com.atlassian.bamboo.upgrade.tasks.validation.BuildNumberInHomeMatchesDatabase.doUpgrade(BuildNumberInHomeMatchesDatabase.java:59)
at com.atlassian.bamboo.upgrade.BootstrapUpgradeManagerImpl.runValidationTask(BootstrapUpgradeManagerImpl.java:129)
at com.atlassian.bamboo.upgrade.BootstrapUpgradeManagerImpl.lambda$runValidationTasks$0(BootstrapUpgradeManagerImpl.java:90)
at com.atlassian.bamboo.upgrade.AbstractUpgradeManager.forEachTask(AbstractUpgradeManager.java:150)
at com.atlassian.bamboo.upgrade.BootstrapUpgradeManagerImpl.runValidationTasks(BootstrapUpgradeManagerImpl.java:90)
at com.atlassian.bamboo.setup.DefaultBootstrapManager.runValidationTasks(DefaultBootstrapManager.java:373)
at com.atlassian.bamboo.setup.DefaultBootstrapManager.performPersistenceUpgrade(DefaultBootstrapManager.java:277)
at com.atlassian.config.bootstrap.DefaultAtlassianBootstrapManager.init(DefaultAtlassianBootstrapManager.java:77)
at com.atlassian.bamboo.setup.BootstrapLoaderListener.contextInitialized(BootstrapLoaderListener.java:118)
at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4842)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5303)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:147)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1407)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1397)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
What does it mean and how can I fix it?