Temp-ban-error

11:22:32 [SEVERE] [BanReport] Couldn't execute SQL statement:
java.sql.SQLException: [SQLITE_CONSTRAINT]  Abort due to constraint violation (banlist.additional may not be NULL)
	at org.sqlite.DB.newSQLException(DB.java:383)
	at org.sqlite.DB.newSQLException(DB.java:387)
	at org.sqlite.DB.execute(DB.java:342)
	at org.sqlite.DB.executeUpdate(DB.java:363)
	at org.sqlite.PrepStmt.executeUpdate(PrepStmt.java:85)
	at jadon.mahoutsukaii.plugins.banreport.MySQLDatabase.addPlayer(MySQLDatabase.java:322)
	at jadon.mahoutsukaii.plugins.banreport.BanReport.tempBan(BanReport.java:574)
	at jadon.mahoutsukaii.plugins.banreport.BanReport.onCommand(BanReport.java:164)
	at org.bukkit.command.PluginCommand.execute(PluginCommand.java:40)
	at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:163)
	at org.bukkit.craftbukkit.CraftServer.dispatchCommand(CraftServer.java:364)
	at org.bukkit.craftbukkit.CraftServer.dispatchCommand(CraftServer.java:360)
	at net.minecraft.server.MinecraftServer.b(MinecraftServer.java:553)
	at net.minecraft.server.MinecraftServer.w(MinecraftServer.java:530)
	at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:414)
	at net.minecraft.server.ThreadServerApplication.run(SourceFile:457)