Hi, I have encountered an error while starting nifi on windows. I suspect it is because of a bad nifi shutdown. nifi-app.log says this is due: 2021-09-24 18:10:59,963 WARN [main] org.apache.nifi.web.server.JettyServer Failed to start web server... shutting down. org.apache.nifi.web.NiFiCoreException: Unable to start Flow Controller. <..> Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'flowService' defined in class path resource [nifi-context.xml]: Cannot resolve reference to bean 'stringEncryptor' while setting bean property 'encryptor'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'stringEncryptor' defined in class path resource [nifi-context.xml]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.apache.nifi.encrypt.StringEncryptor]: Factory method 'createEncryptor' threw exception; nested exception is org.apache.nifi.encrypt.EncryptionException: Cannot initialize the StringEncryptor because some configuration values are invalid Could someone help me out? I have tried to delete all of the repositories, but with no luck. Thanks. ... View more