[12:26:16] [Server thread/WARN]: [Splatoon_in_Minecraft] Task #2471 for Splatoon_in_Minecraft v1.3.0 generated an exception
java.lang.StringIndexOutOfBoundsException: String index out of range: -2
at java.lang.String.substring(String.java:1967) ~[?:1.8.0_65]
at jp.kotmw.splatoon.maingame.threads.ResultRunnable.MeterText2(ResultRunnable.java:57) ~[?:?]
at jp.kotmw.splatoon.maingame.threads.ResultRunnable.run(ResultRunnable.java:39) ~[?:?]
at org.bukkit.craftbukkit.v1_10_R1.scheduler.CraftTask.run(CraftTask.java:71) ~[spigot-1.10.2.jar:git-Spigot-078e2f8-9ff3d7f]
at org.bukkit.craftbukkit.v1_10_R1.scheduler.CraftScheduler.mainThreadHeartbeat(CraftScheduler.java:350) [spigot-1.10.2.jar:git-Spigot-078e2f8-9ff3d7f]
at net.minecraft.server.v1_10_R1.MinecraftServer.D(MinecraftServer.java:723) [spigot-1.10.2.jar:git-Spigot-078e2f8-9ff3d7f]
at net.minecraft.server.v1_10_R1.DedicatedServer.D(DedicatedServer.java:400) [spigot-1.10.2.jar:git-Spigot-078e2f8-9ff3d7f]
at net.minecraft.server.v1_10_R1.MinecraftServer.C(MinecraftServer.java:668) [spigot-1.10.2.jar:git-Spigot-078e2f8-9ff3d7f]
at net.minecraft.server.v1_10_R1.MinecraftServer.run(MinecraftServer.java:567) [spigot-1.10.2.jar:git-Spigot-078e2f8-9ff3d7f]
at java.lang.Thread.run(Thread.java:745) [?:1.8.0_65]
以下のエラー