getObject not supported exception on null object

[Trojaner]

[16:49:53] [Server thread/ERROR]: [SinkLibrary] Command "SinkAntiSpam:warn": Unexpected exception occurred:
[16:49:53] [Server thread/WARN]: java.lang.RuntimeException: Couldn't set value "null" for field: de.static_interface.sinkantispam.database.row.WarnedPlayer.id:
[16:49:53] [Server thread/WARN]: at de.static_interface.sinklibrary.database.AbstractTable.setFieldsFromResultSet(AbstractTable.java:358)
[16:49:53] [Server thread/WARN]: at de.static_interface.sinklibrary.database.AbstractTable.deserializeResultSet(AbstractTable.java:381)
[16:49:53] [Server thread/WARN]: at de.static_interface.sinklibrary.database.AbstractTable.get(AbstractTable.java:257)
[16:49:53] [Server thread/WARN]: at de.static_interface.sinklibrary.database.query.Query.getResults(Query.java:164)
[16:49:53] [Server thread/WARN]: at de.static_interface.sinklibrary.database.query.Query.get(Query.java:181)
[16:49:53] [Server thread/WARN]: at de.static_interface.sinkantispam.WarnUtil.getWarnedPlayer(WarnUtil.java:233)
[16:49:53] [Server thread/WARN]: at de.static_interface.sinkantispam.command.WarnCommand.onExecute(WarnCommand.java:127)
[16:49:53] [Server thread/WARN]: at de.static_interface.sinklibrary.api.command.SinkCommandBase$1.execute(SinkCommandBase.java:290)
[16:49:53] [Server thread/WARN]: at de.static_interface.sinklibrary.api.command.SinkCommandBase.onCommand(SinkCommandBase.java:310)
[16:49:53] [Server thread/WARN]: at de.static_interface.sinklibrary.listener.IrcCommandListener$1.run(IrcCommandListener.java:50)
[16:49:53] [Server thread/WARN]: at org.bukkit.craftbukkit.v1_8_R3.scheduler.CraftTask.run(CraftTask.java:71)
[16:49:53] [Server thread/WARN]: at org.bukkit.craftbukkit.v1_8_R3.scheduler.CraftScheduler.mainThreadHeartbeat(CraftScheduler.java:350)
[16:49:53] [Server thread/WARN]: at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:723)
[16:49:53] [Server thread/WARN]: at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374)
[16:49:53] [Server thread/WARN]: at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654)
[16:49:53] [Server thread/WARN]: at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557)
[16:49:53] [Server thread/WARN]: at java.lang.Thread.run(Thread.java:745)
[16:49:53] [Server thread/WARN]: Caused by: java.lang.RuntimeException: java.sql.SQLFeatureNotSupportedException: Type getObject getting is not supported
[16:49:53] [Server thread/WARN]: at de.static_interface.sinklibrary.database.AbstractTable.setFieldFromResultSet(AbstractTable.java:316)
[16:49:53] [Server thread/WARN]: at de.static_interface.sinklibrary.database.AbstractTable.setFieldsFromResultSet(AbstractTable.java:354)
[16:49:53] [Server thread/WARN]: ... 16 more
[16:49:53] [Server thread/WARN]: Caused by: java.sql.SQLFeatureNotSupportedException: Type getObject getting is not supported
[16:49:53] [Server thread/WARN]: at org.mariadb.jdbc.internal.util.ExceptionMapper.getFeatureNotSupportedException(ExceptionMapper.java:153)
[16:49:53] [Server thread/WARN]: at org.mariadb.jdbc.MariaDbResultSet.getObject(MariaDbResultSet.java:1044)
[16:49:53] [Server thread/WARN]: at com.zaxxer.hikari.proxy.ResultSetJavassistProxy.getObject(ResultSetJavassistProxy.java)
[16:49:53] [Server thread/WARN]: at de.static_interface.sinklibrary.database.AbstractTable.setFieldFromResultSet(AbstractTable.java:286)
[16:49:53] [Server thread/WARN]: ... 17 more