[17:22:05] [Server thread/WARN]: [MineBackup] Task #160 for MineBackup v5.9.4 generated an exception
java.lang.NoSuchMethodError: org.bukkit.Server.getOnlinePlayers()[Lorg/bukkit/entity/Player;
	at ltguide.minebackup.configuration.Persist.hasPlayers(Persist.java:77) ~[?:?]
	at ltguide.minebackup.threads.SyncCall.call(SyncCall.java:51) ~[?:?]
	at ltguide.minebackup.threads.SyncCall.call(SyncCall.java:1) ~[?:?]
	at org.bukkit.craftbukkit.v1_9_R1.scheduler.CraftFuture.run(CraftFuture.java:89) ~[spigot.jar:git-Spigot-6f291ea-55a8535]
	at org.bukkit.craftbukkit.v1_9_R1.scheduler.CraftScheduler.mainThreadHeartbeat(CraftScheduler.java:350) [spigot.jar:git-Spigot-6f291ea-55a8535]
	at net.minecraft.server.v1_9_R1.MinecraftServer.D(MinecraftServer.java:729) [spigot.jar:git-Spigot-6f291ea-55a8535]
	at net.minecraft.server.v1_9_R1.DedicatedServer.D(DedicatedServer.java:400) [spigot.jar:git-Spigot-6f291ea-55a8535]
	at net.minecraft.server.v1_9_R1.MinecraftServer.C(MinecraftServer.java:660) [spigot.jar:git-Spigot-6f291ea-55a8535]
	at net.minecraft.server.v1_9_R1.MinecraftServer.run(MinecraftServer.java:559) [spigot.jar:git-Spigot-6f291ea-55a8535]
	at java.lang.Thread.run(Thread.java:745) [?:1.7.0_79]