[13:43:42] [Server thread/WARN]: [ExtraHardMode] Task #80 for ExtraHardMode v3.5.2 generated an exception
java.lang.NoSuchMethodError: org.bukkit.Server.getOnlinePlayers()Ljava/util/Collection;
	at com.extrahardmode.task.MoreMonstersTask.run(MoreMonstersTask.java:122) ~[?:?]
	at org.bukkit.craftbukkit.v1_7_R3.scheduler.CraftTask.run(CraftTask.java:58) ~[spigot.jar:git-Spigot-1493]
	at org.bukkit.craftbukkit.v1_7_R3.scheduler.CraftScheduler.mainThreadHeartbeat(CraftScheduler.java:345) [spigot.jar:git-Spigot-1493]
	at net.minecraft.server.v1_7_R3.MinecraftServer.v(MinecraftServer.java:635) [spigot.jar:git-Spigot-1493]
	at net.minecraft.server.v1_7_R3.DedicatedServer.v(DedicatedServer.java:283) [spigot.jar:git-Spigot-1493]
	at net.minecraft.server.v1_7_R3.MinecraftServer.u(MinecraftServer.java:583) [spigot.jar:git-Spigot-1493]
	at net.minecraft.server.v1_7_R3.MinecraftServer.run(MinecraftServer.java:489) [spigot.jar:git-Spigot-1493]
	at net.minecraft.server.v1_7_R3.ThreadServerApplication.run(SourceFile:628) [spigot.jar:git-Spigot-1493]
[13:44:12] [Server thread/WARN]: [ExtraHardMode] Task #80 for ExtraHardMode v3.5.2 generated an exception
java.lang.NoSuchMethodError: org.bukkit.Server.getOnlinePlayers()Ljava/util/Collection;
	at com.extrahardmode.task.MoreMonstersTask.run(MoreMonstersTask.java:122) ~[?:?]
	at org.bukkit.craftbukkit.v1_7_R3.scheduler.CraftTask.run(CraftTask.java:58) ~[spigot.jar:git-Spigot-1493]
	at org.bukkit.craftbukkit.v1_7_R3.scheduler.CraftScheduler.mainThreadHeartbeat(CraftScheduler.java:345) [spigot.jar:git-Spigot-1493]
	at net.minecraft.server.v1_7_R3.MinecraftServer.v(MinecraftServer.java:635) [spigot.jar:git-Spigot-1493]
	at net.minecraft.server.v1_7_R3.DedicatedServer.v(DedicatedServer.java:283) [spigot.jar:git-Spigot-1493]
	at net.minecraft.server.v1_7_R3.MinecraftServer.u(MinecraftServer.java:583) [spigot.jar:git-Spigot-1493]
	at net.minecraft.server.v1_7_R3.MinecraftServer.run(MinecraftServer.java:489) [spigot.jar:git-Spigot-1493]
	at net.minecraft.server.v1_7_R3.ThreadServerApplication.run(SourceFile:628) [spigot.jar:git-Spigot-1493]
[13:44:42] [Server thread/INFO]: -=-=-=-=-=-=-=-=-=-=-=-