NoClassDefFoundError: org/spongepowered/api/event/cause/NamedCause

gistfile1.txt

[03:02:18] [Server thread/ERROR] [Sponge]: The Scheduler tried to run the task de_yottaflops_easyscoreboard-S-6 owned by Plugin{id=de_yottaflops_easyscoreboard, name=EasyScoreboards, version
=2.2, description=A plugin to easily create scoreboards for lobbys, authors=[YottaFLOPS], source=E:\ziCRAFT-1.12.2\mods\EasyScoreboards-2.2.jar}, but an error occured.
java.lang.NoClassDefFoundError: org/spongepowered/api/event/cause/NamedCause
        at io.github.flibio.economylite.CauseFactory.create(CauseFactory.java:34) ~[CauseFactory.class:?]
        at io.github.flibio.economylite.impl.economy.LiteEconomyService.getOrCreateAccount(LiteEconomyService.java:58) ~[LiteEconomyService.class:?]
        at de.YottaFLOPS.EasyScoreboard.Main.getPlayerBalance(Main.java:278) ~[Main.class:?]
        at de.YottaFLOPS.EasyScoreboard.Replacements.Replacements.replacePlaceholders(Replacements.java:23) ~[Replacements.class:?]
        at de.YottaFLOPS.EasyScoreboard.Main.makeScoreboard(Main.java:165) ~[Main.class:?]
        at de.YottaFLOPS.EasyScoreboard.Main.setScoreboard(Main.java:339) ~[Main.class:?]
        at com.google.common.collect.ImmutableList.forEach(ImmutableList.java:408) ~[minecraft_server.1.12.2.jar:?]
        at de.YottaFLOPS.EasyScoreboard.Main.updateAllScoreboards(Main.java:330) ~[Main.class:?]
        at de.YottaFLOPS.EasyScoreboard.Util.Runnables.lambda$startPlaceholderTask$2(Runnables.java:85) ~[Runnables.class:?]
        at org.spongepowered.api.scheduler.Task$Builder.lambda$execute$0(Task.java:139) ~[Task$Builder.class:1.12.2-2486-7.0.0-BETA-2645]
        at org.spongepowered.common.scheduler.SchedulerBase.lambda$startTask$0(SchedulerBase.java:187) ~[SchedulerBase.class:1.12.2-2486-7.0.0-BETA-2645]
        at org.spongepowered.common.scheduler.SyncScheduler.executeTaskRunnable(SyncScheduler.java:73) ~[SyncScheduler.class:1.12.2-2486-7.0.0-BETA-2645]
        at org.spongepowered.common.scheduler.SchedulerBase.startTask(SchedulerBase.java:180) ~[SchedulerBase.class:1.12.2-2486-7.0.0-BETA-2645]
        at org.spongepowered.common.scheduler.SchedulerBase.processTask(SchedulerBase.java:166) ~[SchedulerBase.class:1.12.2-2486-7.0.0-BETA-2645]
        at java.util.concurrent.ConcurrentHashMap$ValuesView.forEach(Unknown Source) [?:1.8.0_144]
        at org.spongepowered.common.scheduler.SchedulerBase.runTick(SchedulerBase.java:109) [SchedulerBase.class:1.12.2-2486-7.0.0-BETA-2645]
        at org.spongepowered.common.scheduler.SyncScheduler.tick(SyncScheduler.java:45) [SyncScheduler.class:1.12.2-2486-7.0.0-BETA-2645]
        at org.spongepowered.common.scheduler.SpongeScheduler.tickSyncScheduler(SpongeScheduler.java:182) [SpongeScheduler.class:1.12.2-2486-7.0.0-BETA-2645]
        at org.spongepowered.mod.SpongeMod.onTick(SpongeMod.java:271) [SpongeMod.class:1.12.2-2486-7.0.0-BETA-2645]
        at net.minecraftforge.fml.common.eventhandler.ASMEventHandler_13_SpongeMod_onTick_ServerTickEvent.invoke(.dynamic) [?:?]
        at net.minecraftforge.fml.common.eventhandler.ASMEventHandler.invoke(ASMEventHandler.java:90) [ASMEventHandler.class:?]
        at net.minecraftforge.fml.common.eventhandler.EventBus.post(EventBus.java:651) [EventBus.class:?]
        at net.minecraftforge.fml.common.eventhandler.EventBus.post(EventBus.java:590) [EventBus.class:?]
        at net.minecraftforge.fml.common.FMLCommonHandler.onPreServerTick(FMLCommonHandler.java:277) [FMLCommonHandler.class:?]
        at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:655) [MinecraftServer.class:?]
        at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:524) [MinecraftServer.class:?]
        at java.lang.Thread.run(Unknown Source) [?:1.8.0_144]