Bukkit

Hello error log SQL

[22:34:45] [Server thread/INFO]: [InvSQL][DEBUG] Your Problem was caused by: MySQLDatabaseHandler(connection=com.mysql.jdbc.JDBC4Connection@7d92c904, q=tk.manf.InventorySQL.database.handler.MySQLDatabaseHandler$Queries@2fcb6604)
[22:34:45] [Server thread/INFO]: null
tk.manf.InventorySQL.datahandling.exceptions.SerializationException: Error while serializing: [Parsing Error]
    at tk.manf.InventorySQL.datahandling.serializer.SimpleSerializer.deserializeItemStacks(SimpleSerializer.java:48) ~[InventorySQL-3.5.jar:?]
    at tk.manf.InventorySQL.manager.DataHandlingManager.deserial(DataHandlingManager.java:58) ~[InventorySQL-3.5.jar:?]
    at tk.manf.InventorySQL.database.handler.MySQLDatabaseHandler.loadPlayerInventory(MySQLDatabaseHandler.java:133) ~[InventorySQL-3.5.jar:?]
    at tk.manf.InventorySQL.manager.DatabaseManager.loadPlayer(DatabaseManager.java:92) ~[InventorySQL-3.5.jar:?]
    at tk.manf.InventorySQL.manager.DatabaseManager.onPlayerLogin(DatabaseManager.java:101) [InventorySQL-3.5.jar:?]
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.7.0_79]
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) ~[?:1.7.0_79]
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.7.0_79]
    at java.lang.reflect.Method.invoke(Method.java:606) ~[?:1.7.0_79]
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:301) [spigot.jar:git-Spigot-870264a-0a645a2]
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62) [spigot.jar:git-Spigot-870264a-0a645a2]
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:502) [spigot.jar:git-Spigot-870264a-0a645a2]
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:487) [spigot.jar:git-Spigot-870264a-0a645a2]
    at net.minecraft.server.v1_8_R2.PlayerList.onPlayerJoin(PlayerList.java:296) [spigot.jar:git-Spigot-870264a-0a645a2]
    at net.minecraft.server.v1_8_R2.PlayerList.a(PlayerList.java:156) [spigot.jar:git-Spigot-870264a-0a645a2]
    at net.minecraft.server.v1_8_R2.LoginListener.b(LoginListener.java:144) [spigot.jar:git-Spigot-870264a-0a645a2]
    at net.minecraft.server.v1_8_R2.LoginListener.c(LoginListener.java:54) [spigot.jar:git-Spigot-870264a-0a645a2]
    at net.minecraft.server.v1_8_R2.NetworkManager.a(NetworkManager.java:231) [spigot.jar:git-Spigot-870264a-0a645a2]
    at net.minecraft.server.v1_8_R2.ServerConnection.c(ServerConnection.java:148) [spigot.jar:git-Spigot-870264a-0a645a2]
    at net.minecraft.server.v1_8_R2.MinecraftServer.A(MinecraftServer.java:811) [spigot.jar:git-Spigot-870264a-0a645a2]
    at net.minecraft.server.v1_8_R2.DedicatedServer.A(DedicatedServer.java:368) [spigot.jar:git-Spigot-870264a-0a645a2]
    at net.minecraft.server.v1_8_R2.MinecraftServer.z(MinecraftServer.java:651) [spigot.jar:git-Spigot-870264a-0a645a2]
    at net.minecraft.server.v1_8_R2.MinecraftServer.run(MinecraftServer.java:554) [spigot.jar:git-Spigot-870264a-0a645a2]
    at java.lang.Thread.run(Thread.java:745) [?:1.7.0_79]
Caused by: org.json.simple.parser.ParseException
    at org.json.simple.parser.Yylex.yylex(Yylex.java:610) ~[spigot.jar:git-Spigot-870264a-0a645a2]
    at org.json.simple.parser.JSONParser.nextToken(JSONParser.java:269) ~[spigot.jar:git-Spigot-870264a-0a645a2]
    at org.json.simple.parser.JSONParser.parse(JSONParser.java:118) ~[spigot.jar:git-Spigot-870264a-0a645a2]
    at org.json.simple.parser.JSONParser.parse(JSONParser.java:81) ~[spigot.jar:git-Spigot-870264a-0a645a2]
    at org.json.simple.parser.JSONParser.parse(JSONParser.java:75) ~[spigot.jar:git-Spigot-870264a-0a645a2]
    at org.json.simple.JSONValue.parseWithException(JSONValue.java:78) ~[spigot.jar:git-Spigot-870264a-0a645a2]
    at tk.manf.InventorySQL.datahandling.serializer.SimpleSerializer.deserializeItemStacks(SimpleSerializer.java:46) ~[InventorySQL-3.5.jar:?]
    ... 23 more

Thannks yoou