$ docker logs openfire
Initializing /var/lib/openfire...
Initializing /var/log/openfire...
java.lang.IllegalArgumentException: Illegal base64 character 20
        at java.base/java.util.Base64$Decoder.decode0(Base64.java:847)
        at java.base/java.util.Base64$Decoder.decode(Base64.java:566)
        at java.base/java.util.Base64$Decoder.decode(Base64.java:589)
        at org.jivesoftware.util.AesEncryptor.decrypt(AesEncryptor.java:100)
        at org.jivesoftware.util.AesEncryptor.decrypt(AesEncryptor.java:94)
        at org.jivesoftware.util.JiveGlobals.getCurrentKey(JiveGlobals.java:1128)
        at org.jivesoftware.util.JiveGlobals.setupPropertyEncryption(JiveGlobals.java:1329)
        at org.jivesoftware.util.JiveGlobals.loadSecurityProperties(JiveGlobals.java:1296)
        at org.jivesoftware.util.JiveGlobals.isXMLPropertyEncrypted(JiveGlobals.java:1010)
        at org.jivesoftware.util.XMLProperties.getProperty(XMLProperties.java:212)
        at org.jivesoftware.util.XMLProperties.getProperty(XMLProperties.java:171)
        at org.jivesoftware.util.JiveGlobals.getXMLProperty(JiveGlobals.java:310)
        at org.jivesoftware.openfire.XMPPServer.initialize(XMPPServer.java:366)
        at org.jivesoftware.openfire.XMPPServer.start(XMPPServer.java:660)
        at org.jivesoftware.openfire.XMPPServer.<init>(XMPPServer.java:220)
        at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
        at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:77)
        at java.base/jdk.internal.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
        at java.base/java.lang.reflect.Constructor.newInstanceWithCaller(Constructor.java:499)
        at java.base/java.lang.reflect.ReflectAccess.newInstance(ReflectAccess.java:128)
        at java.base/jdk.internal.reflect.ReflectionFactory.newInstance(ReflectionFactory.java:347)
        at java.base/java.lang.Class.newInstance(Class.java:645)
        at org.jivesoftware.openfire.starter.ServerStarter.start(ServerStarter.java:92)
        at org.jivesoftware.openfire.starter.ServerStarter.main(ServerStarter.java:56)
Error starting the server. Please check the log files for more information.