08.01 15:21:54 [Server] Server thread/WARN [Skywars] Task #1143 for Skywars v4.3.0 generated an exception
08.01 15:21:54 [Server] INFO java.lang.ClassCastException: org.bukkit.material.MaterialData cannot be cast to org.bukkit.material.Sign
08.01 15:21:54 [Server] INFO at com.walrusone.skywarsreloaded.managers.Leaderboard.updateHead(Leaderboard.java:211) ~[?:?]
08.01 15:21:54 [Server] INFO at com.walrusone.skywarsreloaded.managers.Leaderboard.updateSigns(Leaderboard.java:199) ~[?:?]
08.01 15:21:54 [Server] INFO at com.walrusone.skywarsreloaded.managers.Leaderboard.access$0(Leaderboard.java:172) ~[?:?]
08.01 15:21:54 [Server] INFO at com.walrusone.skywarsreloaded.managers.Leaderboard$1.run(Leaderboard.java:77) ~[?:?]
08.01 15:21:54 [Server] INFO at org.bukkit.craftbukkit.v1_15_R1.scheduler.CraftTask.run(CraftTask.java:81) ~[spigot-1.15.1.jar:git-Spigot-492a779-b98e2de]
08.01 15:21:54 [Server] INFO at org.bukkit.craftbukkit.v1_15_R1.scheduler.CraftScheduler.mainThreadHeartbeat(CraftScheduler.java:394) [spigot-1.15.1.jar:git-Spigot-492a779-b98e2de]
08.01 15:21:54 [Server] INFO at net.minecraft.server.v1_15_R1.MinecraftServer.b(MinecraftServer.java:1030) [spigot-1.15.1.jar:git-Spigot-492a779-b98e2de]
08.01 15:21:54 [Server] INFO at net.minecraft.server.v1_15_R1.DedicatedServer.b(DedicatedServer.java:393) [spigot-1.15.1.jar:git-Spigot-492a779-b98e2de]
08.01 15:21:54 [Server] INFO at net.minecraft.server.v1_15_R1.MinecraftServer.a(MinecraftServer.java:978) [spigot-1.15.1.jar:git-Spigot-492a779-b98e2de]
08.01 15:21:54 [Server] INFO at net.minecraft.server.v1_15_R1.MinecraftServer.run(MinecraftServer.java:823) [spigot-1.15.1.jar:git-Spigot-492a779-b98e2de]
08.01 15:21:54 [Server] INFO at java.lang.Thread.run(Thread.java:748) [?:1.8.0_191]