Azkaban restart error report

[Mask0407]

java.sql.SQLException: Cannot create PoolableConnectionFactory (General error: "java.lang.NullPointerException" [50000-193])
at org.apache.commons.dbcp2.BasicDataSource.createPoolableConnectionFactory(BasicDataSource.java:669)
at org.apache.commons.dbcp2.BasicDataSource.createDataSource(BasicDataSource.java:544)
at org.apache.commons.dbcp2.BasicDataSource$PaGetConnection.run(BasicDataSource.java:73)
at org.apache.commons.dbcp2.BasicDataSource$PaGetConnection.run(BasicDataSource.java:69)
at java.security.AccessController.doPrivileged(Native Method)
at org.apache.commons.dbcp2.BasicDataSource.getConnection(BasicDataSource.java:744)
at azkaban.database.AzkabanDatabaseSetup.loadInstalledTables(AzkabanDatabaseSetup.java:212)
at azkaban.database.AzkabanDatabaseSetup.loadTableInfo(AzkabanDatabaseSetup.java:105)
at azkaban.database.AzkabanDatabaseUpdater.runDatabaseUpdater(AzkabanDatabaseUpdater.java:82)
at azkaban.soloserver.AzkabanSingleServer.start(AzkabanSingleServer.java:93)
at azkaban.soloserver.AzkabanSingleServer.main(AzkabanSingleServer.java:58)
Caused by: org.h2.jdbc.JdbcSQLException: General error: "java.lang.NullPointerException" [50000-193]
at org.h2.message.DbException.getJdbcSQLException(DbException.java:345)
at org.h2.message.DbException.get(DbException.java:168)
at org.h2.message.DbException.convert(DbException.java:295)
at org.h2.engine.Database.openDatabase(Database.java:304)
at org.h2.engine.Database.(Database.java:267)
at org.h2.engine.Engine.openSession(Engine.java:64)
at org.h2.engine.Engine.openSession(Engine.java:176)
at org.h2.engine.Engine.createSessionAndValidate(Engine.java:154)
at org.h2.engine.Engine.createSession(Engine.java:137)
at org.h2.engine.Engine.createSession(Engine.java:27)
at org.h2.engine.SessionRemote.connectEmbeddedOrServer(SessionRemote.java:349)
at org.h2.jdbc.JdbcConnection.(JdbcConnection.java:115)
at org.h2.jdbc.JdbcConnection.(JdbcConnection.java:99)
at org.h2.Driver.connect(Driver.java:69)
at org.apache.commons.dbcp2.DriverConnectionFactory.createConnection(DriverConnectionFactory.java:55)
at org.apache.commons.dbcp2.PoolableConnectionFactory.makeObject(PoolableConnectionFactory.java:355)
at org.apache.commons.dbcp2.BasicDataSource.validateConnectionFactory(BasicDataSource.java:115)
at org.apache.commons.dbcp2.BasicDataSource.createPoolableConnectionFactory(BasicDataSource.java:665)
... 10 more
Caused by: java.lang.NullPointerException
at org.h2.mvstore.db.ValueDataType.compare(ValueDataType.java:102)
at org.h2.mvstore.MVMap.compare(MVMap.java:708)
at org.h2.mvstore.Page.binarySearch(Page.java:334)
at org.h2.mvstore.MVMap.binarySearch(MVMap.java:461)
at org.h2.mvstore.MVMap.get(MVMap.java:450)
at org.h2.mvstore.MVMap.remove(MVMap.java:538)
at org.h2.mvstore.db.TransactionStore.rollbackTo(TransactionStore.java:502)
at org.h2.mvstore.db.TransactionStore$Transaction.rollback(TransactionStore.java:799)
at org.h2.mvstore.db.MVTableEngine$Store.initTransactions(MVTableEngine.java:255)
at org.h2.engine.Database.open(Database.java:765)
at org.h2.engine.Database.openDatabase(Database.java:273)
... 24 more