Hello,
My friend made a server that we've been playing on for days and for some reason at random the server crashed and everyone else was able to join back to it except me. Now every time I try to join that specific world, it says "Connection lost" "Internal Server Error". We are only using the snapshot of Minecraft, no mods or plugins. I've read so many potential fixes, but nothing seems to work. I'm able to join other servers, just not this one. I downloaded the world and put it on my own server but it gave me the same error. This leads me to believe there's a problem with the world, but only specifically for me because everyone else can join. If there's ANY way to fix or work around this I'd very much appreciate it. My Aternos name is TwoPlease, but the server I'm trying to join is under hpd6 's account. I'll put the console log below if that helps.
[User Authenticator #2/INFO]: UUID of player Sudden_Triumph is 9facf45e-d598-4128-94f4-c1a35ac46f3b
[19:48:10] [Server thread/WARN]: Failed to handle packet for /24.60.108.100:59840
java.lang.IllegalStateException: Not a JSON Object: null
at com.google.gson.JsonElement.getAsJsonObject(JsonElement.java:90) ~[minecraft_server.jar:?]
at vx.a(SourceFile:81) ~[minecraft_server.jar:?]
at vx.<init>(SourceFile:47) ~[minecraft_server.jar:?]
at uy.a(SourceFile:923) ~[minecraft_server.jar:?]
at so.<init>(SourceFile:160) ~[minecraft_server.jar:?]
at uy.g(SourceFile:443) ~[minecraft_server.jar:?]
at tn.b(SourceFile:118) ~[minecraftserver.jar:?]
at tn.Y(SourceFile:65) ~[minecraft_server.jar:?]
at hu.a(SourceFile:221) ~[minecraft_server.jar:?]
at tk.c(SourceFile:175) [minecraft_server.jar:?]
at net.minecraft.server.MinecraftServer.w(SourceFile:719) [minecraft_server.jar:?]
at rx.w(SourceFile:365) [minecraft_server.jar:?]
at net.minecraft.server.MinecraftServer.v(SourceFile:626) [minecraft_server.jar:?]
at net.minecraft.server.MinecraftServer.run(SourceFile:531) [minecraft_server.jar:?]
at java.lang.Thread.run(Thread.java:748) [?:1.8.0_144]
[19:48:11] [Server thread/INFO]: com.mojang.authlib.GameProfile@5d810df6[id=9facf45e-d598-4128-94f4-c1a35ac46f3b,name=Sudden_Triumph,properties={textures=[com.mojang.authlib.properties.Property@7458335f]},legacy=false] (/24.60.108.100:59840) lost connection: Internal server error
[SOLVED]
I ended up just deleting my specific number sequence from the stats folder of the world and it worked.