[21:29:47 WARN]: [Skript] Task #2379649 for Skript v2.3.6 generated an exception
java.lang.NoClassDefFoundError: Could not initialize class uk.tim740.skUtilities.files.event.EvtFileDeletion
        at uk.tim740.skUtilities.files.EffDeleteFile.execute(EffDeleteFile.java:27) ~[?:?]
        at ch.njol.skript.lang.Effect.run(Effect.java:52) ~[?:?]
        at ch.njol.skript.lang.TriggerItem.walk(TriggerItem.java:61) ~[?:?]
        at ch.njol.skript.lang.TriggerItem.walk(TriggerItem.java:89) ~[?:?]
        at ch.njol.skript.lang.Trigger.execute(Trigger.java:57) ~[?:?]
        at ch.njol.skript.lang.function.ScriptFunction.execute(ScriptFunction.java:93) ~[?:?]
        at ch.njol.skript.lang.function.Function.execute(Function.java:119) ~[?:?]
        at ch.njol.skript.lang.function.FunctionReference.execute(FunctionReference.java:204) ~[?:?]
        at ch.njol.skript.lang.function.EffFunctionCall.execute(EffFunctionCall.java:53) ~[?:?]
        at ch.njol.skript.lang.Effect.run(Effect.java:52) ~[?:?]
        at ch.njol.skript.lang.TriggerItem.walk(TriggerItem.java:61) ~[?:?]
        at ch.njol.skript.lang.TriggerItem.walk(TriggerItem.java:89) ~[?:?]
        at ch.njol.skript.lang.Trigger.execute(Trigger.java:57) ~[?:?]
        at ch.njol.skript.events.EvtChat$1.execute(EvtChat.java:72) ~[?:?]
        at ch.njol.skript.events.EvtChat$1$1.call(EvtChat.java:91) ~[?:?]
        at ch.njol.skript.events.EvtChat$1$1.call(EvtChat.java:1) ~[?:?]
        at org.bukkit.craftbukkit.v1_13_R2.scheduler.CraftFuture.run(CraftFuture.java:85) ~[patched_1.13.2.jar:git-Paper-628]
        at org.bukkit.craftbukkit.v1_13_R2.scheduler.CraftScheduler.mainThreadHeartbeat(CraftScheduler.java:449) [patched_1.13.2.jar:git-Paper-628]
        at net.minecraft.server.v1_13_R2.MinecraftServer.b(MinecraftServer.java:1010) [patched_1.13.2.jar:git-Paper-628]
        at net.minecraft.server.v1_13_R2.DedicatedServer.b(DedicatedServer.java:439) [patched_1.13.2.jar:git-Paper-628]
        at net.minecraft.server.v1_13_R2.MinecraftServer.a(MinecraftServer.java:940) [patched_1.13.2.jar:git-Paper-628]
        at net.minecraft.server.v1_13_R2.MinecraftServer.run(MinecraftServer.java:837) [patched_1.13.2.jar:git-Paper-628]
        at java.lang.Thread.run(Thread.java:748) [?:1.8.0_222]