Bukkit Stream Error 3

21:30:21] [pool-3-thread-1/INFO]: DataSourcePool [BukkitStream] grow; id[BukkitStream.2] busy[3] max[20]
[21:30:23] [pool-3-thread-19/INFO]: DataSourcePool [BukkitStream] grow; id[BukkitStream.3] busy[4] max[20]
[21:30:23] [pool-3-thread-18/INFO]: DataSourcePool [BukkitStream] grow; id[BukkitStream.4] busy[5] max[20]
[21:30:24] [pool-3-thread-20/INFO]: DataSourcePool [BukkitStream] grow; id[BukkitStream.5] busy[6] max[20]
[21:30:24] [pool-3-thread-22/INFO]: DataSourcePool [BukkitStream] grow; id[BukkitStream.6] busy[7] max[20]
[21:30:26] [pool-3-thread-1/WARN]: Exception in thread "pool-3-thread-1"
[21:30:26] [pool-3-thread-1/WARN]: org.apache.commons.lang.UnhandledException: Plugin BukkitStream v1.0.15 generated an exception while executing task 8779
    at org.bukkit.craftbukkit.v1_8_R2.scheduler.CraftAsyncTask.run(CraftAsyncTask.java:56)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
    at java.lang.Thread.run(Unknown Source)
Caused by: javax.persistence.PersistenceException: java.sql.SQLException: database is locked
    at com.avaje.ebeaninternal.server.transaction.JdbcTransaction.rollback(JdbcTransaction.java:646)
    at com.avaje.ebeaninternal.server.transaction.JdbcTransaction.rollback(JdbcTransaction.java:627)
    at com.avaje.ebeaninternal.server.core.BeanRequest.rollbackTransIfRequired(BeanRequest.java:107)
    at com.avaje.ebeaninternal.server.core.DefaultServer.findList(DefaultServer.java:1527)
    at com.avaje.ebeaninternal.server.core.DefaultServer.findUnique(DefaultServer.java:1288)
    at com.avaje.ebeaninternal.server.querydefn.DefaultOrmQuery.findUnique(DefaultOrmQuery.java:922)
    at com.avaje.ebeaninternal.util.DefaultExpressionList.findUnique(DefaultExpressionList.java:193)
    at fr.goc.androidremotebukkit.StatsBlockBroken.run(StatsBlockBroken.java:24)
    at org.bukkit.craftbukkit.v1_8_R2.scheduler.CraftTask.run(CraftTask.java:53)
    at org.bukkit.craftbukkit.v1_8_R2.scheduler.CraftAsyncTask.run(CraftAsyncTask.java:53)
    ... 3 more
Caused by: java.sql.SQLException: database is locked
    at org.sqlite.DB.throwex(DB.java:370)
    at org.sqlite.DB.exec(DB.java:76)
    at org.sqlite.Conn.rollback(Conn.java:351)
    at com.avaje.ebeaninternal.server.lib.sql.PooledConnection.rollback(PooledConnection.java:752)
    at com.avaje.ebeaninternal.server.transaction.JdbcTransaction.rollback(JdbcTransaction.java:639)
    ... 12 more

[21:30:26] [pool-3-thread-22/WARN]: Exception in thread "pool-3-thread-22"
[21:30:26] [pool-3-thread-22/WARN]: org.apache.commons.lang.UnhandledException: Plugin BukkitStream v1.0.15 generated an exception while executing task 8821
    at org.bukkit.craftbukkit.v1_8_R2.scheduler.CraftAsyncTask.run(CraftAsyncTask.java:56)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
    at java.lang.Thread.run(Unknown Source)
Caused by: javax.persistence.OptimisticLockException: Data has changed. updated [0] rows sql[update bs_brocken_block set nb_blocks=? where id=? and date_ref=? and nb_blocks=? and block=?] bind[null]
    at com.avaje.ebeaninternal.server.persist.dml.DmlHandler.checkRowCount(DmlHandler.java:122)
    at com.avaje.ebeaninternal.server.persist.dml.UpdateHandler.execute(UpdateHandler.java:107)
    at com.avaje.ebeaninternal.server.persist.dml.DmlBeanPersister.execute(DmlBeanPersister.java:105)
    at com.avaje.ebeaninternal.server.persist.dml.DmlBeanPersister.update(DmlBeanPersister.java:85)
    at com.avaje.ebeaninternal.server.persist.DefaultPersistExecute.executeUpdateBean(DefaultPersistExecute.java:110)
    at com.avaje.ebeaninternal.server.core.PersistRequestBean.executeNow(PersistRequestBean.java:504)
    at com.avaje.ebeaninternal.server.core.PersistRequestBean.executeOrQueue(PersistRequestBean.java:530)
    at com.avaje.ebeaninternal.server.persist.DefaultPersister.update(DefaultPersister.java:436)
    at com.avaje.ebeaninternal.server.persist.DefaultPersister.forceUpdate(DefaultPersister.java:203)
    at com.avaje.ebeaninternal.server.core.DefaultServer.update(DefaultServer.java:1670)
    at com.avaje.ebeaninternal.server.core.DefaultServer.update(DefaultServer.java:1659)
    at com.avaje.ebeaninternal.server.core.DefaultServer.update(DefaultServer.java:1636)
    at fr.goc.androidremotebukkit.StatsBlockBroken.run(StatsBlockBroken.java:37)
    at org.bukkit.craftbukkit.v1_8_R2.scheduler.CraftTask.run(CraftTask.java:53)
    at org.bukkit.craftbukkit.v1_8_R2.scheduler.CraftAsyncTask.run(CraftAsyncTask.java:53)
    ... 3 more