HERE'S MY CRASH REPORT

---- Minecraft Crash Report ----
// Hey, that tickles! Hehehe!

Time: 18/06/17 13:17
Description: Exception in server tick loop

com.google.gson.JsonSyntaxException: java.lang.IllegalStateException: Expected BEGIN_ARRAY but was STRING at line 1 column 1
    at com.google.gson.Gson.fromJson(Gson.java:815)
    at com.google.gson.Gson.fromJson(Gson.java:768)
    at net.minecraft.server.management.UserList.func_152679_g(SourceFile:137)
    at net.minecraft.server.dedicated.DedicatedPlayerList.func_187246_z(SourceFile:99)
    at net.minecraft.server.dedicated.DedicatedPlayerList.<init>(SourceFile:25)
    at net.minecraft.server.dedicated.DedicatedServer.func_71197_b(DedicatedServer.java:215)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:431)
    at java.lang.Thread.run(Unknown Source)
Caused by: java.lang.IllegalStateException: Expected BEGIN_ARRAY but was STRING at line 1 column 1
    at com.google.gson.stream.JsonReader.beginArray(JsonReader.java:338)
    at com.google.gson.internal.bind.CollectionTypeAdapterFactory$Adapter.read(CollectionTypeAdapterFactory.java:79)
    at com.google.gson.internal.bind.CollectionTypeAdapterFactory$Adapter.read(CollectionTypeAdapterFactory.java:60)
    at com.google.gson.Gson.fromJson(Gson.java:803)
    ... 7 more

A detailed walkthrough of the error, its code path and all known details is as follows:
---------------------------------------------------------------------------------------

-- System Details --
Details:
    Minecraft Version: 1.10
    Operating System: Windows 10 (amd64) version 10.0
    Java Version: 1.8.0_77, Oracle Corporation
    Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
    Memory: 371707888 bytes (354 MB) / 503316480 bytes (480 MB) up to 855113728 bytes (815 MB)
    JVM Flags: 1 total; -Xmn512M
    IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
    FML: MCP 9.32 Powered by Forge 12.18.0.2000 3 mods loaded, 3 mods active
    States: 'U' = Unloaded 'L' = Loaded 'C' = Constructed 'H' = Pre-initialized 'I' = Initialized 'J' = Post-initialized 'A' = Available 'D' = Disabled 'E' = Errored
    UCHIJA    mcp{9.19} [Minecraft Coder Pack] (minecraft.jar) 
    UCHIJA    FML{8.0.99.99} [Forge Mod Loader] (forge-1.10-12.18.0.2000-1.10.0-universal.jar) 
    UCHIJA    Forge{12.18.0.2000} [Minecraft Forge] (forge-1.10-12.18.0.2000-1.10.0-universal.jar) 
    Loaded coremods (and transformers): 
    Profiler Position: N/A (disabled)
    Is Modded: Definitely; Server brand changed to 'fml,forge'
    Type: Dedicated Server (map_server.txt)

15 minutes ago, hogfly893 said:

com.google.gson.JsonSyntaxException: java.lang.IllegalStateException: Expected BEGIN_ARRAY but was STRING at line 1 column 1
    at com.google.gson.Gson.fromJson(Gson.java:815)
    at com.google.gson.Gson.fromJson(Gson.java:768)
    at net.minecraft.server.management.UserList.func_152679_g(SourceFile:137)
    at net.minecraft.server.dedicated.DedicatedPlayerList.func_187246_z(SourceFile:99)
    at net.minecraft.server.dedicated.DedicatedPlayerList.<init>(SourceFile:25)
    at net.minecraft.server.dedicated.DedicatedServer.func_71197_b(DedicatedServer.java:215)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:431)

 

func_187246_z is loadPlayerBanList, which is the method responsible for loading the list of banned players from banned-players.json. This error was thrown because that file has a syntax error in it.

 

Either fix the syntax error or delete the file and re-ban any banned players.