[23:41:53 WARN]: [TintaGladiador] Task #19388 for TintaGladiador v1.5 generated an exceptionjava.util.ConcurrentModificationException	at java.util.ArrayList$Itr.checkForComodification(Unknown Source) ~[?:1.8.0_60]	at java.util.ArrayList$Itr.next(Unknown Source) ~[?:1.8.0_60]	at me.tintaglad.g.run(z:250) ~[?:?] at org.bukkit.craftbukkit.v1_8_R3.scheduler.CraftTask.run(CraftTask.java:71) ~[rankup-spigot.jar:git-Spigot-6d0ae89-a03743b]	at org.bukkit.craftbukkit.v1_8_R3.scheduler.CraftScheduler.mainThreadHeartbeat(CraftScheduler.java:350) [rankup-spigot.jar:git-Spigot-6d0ae89-a03743b]	at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:726) [rankup-spigot.jar:git-Spigot-6d0ae89-a03743b]	at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:367) [rankup-spigot.jar:git-Spigot-6d0ae89-a03743b]	at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:657) [rankup-spigot.jar:git-Spigot-6d0ae89-a03743b]	at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:560) [rankup-spigot.jar:git-Spigot-6d0ae89-a03743b]	at java.lang.Thread.run(Unknown Source) [?:1.8.0_60]