Application startup failed

The application has failed to start due to it encountering an error.
za.co.virtualpostman.wattle.startup.WattleInitializationException: za.co.virtualpostman.db.dbmigrator.DBMigException: Error applying database change id [201908051706] for changelog: VirtualPostman
	at za.co.virtualpostman.wattle.WattleApplication.initialize(WattleApplication.java:760)
	at za.co.virtualpostman.wattle.servlet.WattleFilter.init(WattleFilter.java:59)
	at za.co.virtualpostman.wattle.lifecycle.LifeCycle$2.run(LifeCycle.java:243)
	at java.lang.Thread.run(Thread.java:750)
Caused by: za.co.virtualpostman.db.dbmigrator.DBMigException: Error applying database change id [201908051706] for changelog: VirtualPostman
	at za.co.virtualpostman.db.dbmigrator.DatabaseMigrator.upgradeDatabase(DatabaseMigrator.java:178)
	at za.co.virtualpostman.wattle.db.DatabaseInitUtils.initialiseDatabase(DatabaseInitUtils.java:63)
	at za.co.virtualpostman.wattle.WattleApplication.initialize(WattleApplication.java:758)
	... 3 more
Caused by: org.postgresql.util.PSQLException: ERROR: must be owner of table node
	at org.postgresql.core.v3.QueryExecutorImpl.receiveErrorResponse(QueryExecutorImpl.java:2734)
	at org.postgresql.core.v3.QueryExecutorImpl.processResults(QueryExecutorImpl.java:2421)
	at org.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:372)
	at org.postgresql.jdbc.PgStatement.executeInternal(PgStatement.java:518)
	at org.postgresql.jdbc.PgStatement.execute(PgStatement.java:435)
	at org.postgresql.jdbc.PgStatement.executeWithFlags(PgStatement.java:357)
	at org.postgresql.jdbc.PgStatement.executeCachedSql(PgStatement.java:342)
	at org.postgresql.jdbc.PgStatement.executeWithFlags(PgStatement.java:318)
	at org.postgresql.jdbc.PgStatement.execute(PgStatement.java:313)
	at com.mchange.v2.c3p0.impl.NewProxyStatement.execute(NewProxyStatement.java:75)
	at za.co.virtualpostman.db.dbmigrator.SQLDatabaseChange.applyChange(SQLDatabaseChange.java:24)
	at za.co.virtualpostman.db.dbmigrator.DatabaseMigrator.applyChange(DatabaseMigrator.java:88)
	at za.co.virtualpostman.db.dbmigrator.DatabaseMigrator.upgradeDatabase(DatabaseMigrator.java:175)
	... 5 more