Skywars Problems in the Console

I always get the error with Skywars in the console knows what the error is?



[16:13:13] [Server thread/WARN]: [SkyWarsReloaded] Task #93 for SkyWarsReloaded v2.8.4 generated an exception
java.lang.NullPointerException
at com.walrusone.skywars.SkyWarsReloaded.getGC(SkyWarsReloaded.java:500) ~[?:?]
at com.walrusone.skywars.runnables.CheckForMinPlayers.run(CheckForMinPlayers.java:10) ~[?:?]
at org.bukkit.craftbukkit.v1_11_R1.scheduler.CraftTask.run(CraftTask.java:58) ~[PaperSpigot-latest.jar:git-Paper-1101]
at org.bukkit.craftbukkit.v1_11_R1.scheduler.CraftScheduler.mainThreadHeartbeat(CraftScheduler.java:356) [PaperSpigot-latest.jar:git-Paper-1101]
at net.minecraft.server.v1_11_R1.MinecraftServer.D(MinecraftServer.java:820) [PaperSpigot-latest.jar:git-Paper-1101]
at net.minecraft.server.v1_11_R1.DedicatedServer.D(DedicatedServer.java:403) [PaperSpigot-latest.jar:git-Paper-1101]
at net.minecraft.server.v1_11_R1.MinecraftServer.C(MinecraftServer.java:754) [PaperSpigot-latest.jar:git-Paper-1101]
at net.minecraft.server.v1_11_R1.MinecraftServer.run(MinecraftServer.java:652) [PaperSpigot-latest.jar:git-Paper-1101]
at java.lang.Thread.run(Thread.java:745) [?:1.8.0_25]
[16:13:14] [Server thread/WARN]: [SkyWarsReloaded] Task #93 for SkyWarsReloaded v2.8.4 generated an exception
java.lang.NullPointerException
at com.walrusone.skywars.SkyWarsReloaded.getGC(SkyWarsReloaded.java:500) ~[?:?]
at com.walrusone.skywars.runnables.CheckForMinPlayers.run(CheckForMinPlayers.java:10) ~[?:?]
at org.bukkit.craftbukkit.v1_11_R1.scheduler.CraftTask.run(CraftTask.java:58) ~[PaperSpigot-latest.jar:git-Paper-1101]
at org.bukkit.craftbukkit.v1_11_R1.scheduler.CraftScheduler.mainThreadHeartbeat(CraftScheduler.java:356) [PaperSpigot-latest.jar:git-Paper-1101]
at net.minecraft.server.v1_11_R1.MinecraftServer.D(MinecraftServer.java:820) [PaperSpigot-latest.jar:git-Paper-1101]
at net.minecraft.server.v1_11_R1.DedicatedServer.D(DedicatedServer.java:403) [PaperSpigot-latest.jar:git-Paper-1101]
at net.minecraft.server.v1_11_R1.MinecraftServer.C(MinecraftServer.java:754) [PaperSpigot-latest.jar:git-Paper-1101]
at net.minecraft.server.v1_11_R1.MinecraftServer.run(MinecraftServer.java:652) [PaperSpigot-latest.jar:git-Paper-1101]
at java.lang.Thread.run(Thread.java:745) [?:1.8.0_25]
[16:13:15] [Server thread/WARN]: [SkyWarsReloaded] Task #93 for SkyWarsReloaded v2.8.4 generated an exception
java.lang.NullPointerException
at com.walrusone.skywars.SkyWarsReloaded.getGC(SkyWarsReloaded.java:500) ~[?:?]
at com.walrusone.skywars.runnables.CheckForMinPlayers.run(CheckForMinPlayers.java:10) ~[?:?]
at org.bukkit.craftbukkit.v1_11_R1.scheduler.CraftTask.run(CraftTask.java:58) ~[PaperSpigot-latest.jar:git-Paper-1101]
at org.bukkit.craftbukkit.v1_11_R1.scheduler.CraftScheduler.mainThreadHeartbeat(CraftScheduler.java:356) [PaperSpigot-latest.jar:git-Paper-1101]
at net.minecraft.server.v1_11_R1.MinecraftServer.D(MinecraftServer.java:820) [PaperSpigot-latest.jar:git-Paper-1101]
at net.minecraft.server.v1_11_R1.DedicatedServer.D(DedicatedServer.java:403) [PaperSpigot-latest.jar:git-Paper-1101]
at net.minecraft.server.v1_11_R1.MinecraftServer.C(MinecraftServer.java:754) [PaperSpigot-latest.jar:git-Paper-1101]
at net.minecraft.server.v1_11_R1.MinecraftServer.run(MinecraftServer.java:652) [PaperSpigot-latest.jar:git-Paper-1101]
at java.lang.Thread.run(Thread.java:745) [?:1.8.0_25]
[16:13:16] [Server thread/WARN]: [SkyWarsReloaded] Task #93 for SkyWarsReloaded v2.8.4 generated an exception
java.lang.NullPointerException