[18:09:30 WARN]: [SkyWarsReloaded] Task #18 for SkyWarsReloaded v3.1.2 generated an exception
java.lang.NoSuchFieldError: ICE_PLAINS
        at com.walrusone.skywars.game.Game.setWeather(Game.java:1244) ~[?:?]
        at com.walrusone.skywars.game.Game.startGame(Game.java:433) ~[?:?]
        at com.walrusone.skywars.game.Game.prepareForStart(Game.java:300) ~[?:?]
        at com.walrusone.skywars.runnables.CheckForMinPlayers.run(CheckForMinPlayers.java:11) ~[?:?]
        at org.bukkit.craftbukkit.v1_12_R1.scheduler.CraftTask.run(CraftTask.java:58) ~[spigot.jar:git-Paper-1190]
        at org.bukkit.craftbukkit.v1_12_R1.scheduler.CraftScheduler.mainThreadHeartbeat(CraftScheduler.java:356) [spigot.jar:git-Paper-1190]
        at net.minecraft.server.v1_12_R1.MinecraftServer.D(MinecraftServer.java:833) [spigot.jar:git-Paper-1190]
        at net.minecraft.server.v1_12_R1.DedicatedServer.D(DedicatedServer.java:424) [spigot.jar:git-Paper-1190]
        at net.minecraft.server.v1_12_R1.MinecraftServer.C(MinecraftServer.java:767) [spigot.jar:git-Paper-1190]
        at net.minecraft.server.v1_12_R1.MinecraftServer.run(MinecraftServer.java:665) [spigot.jar:git-Paper-1190]
        at java.lang.Thread.run(Thread.java:748) [?:1.8.0_144]