[09:44:51 WARN]: [DungeonsAndMobs] Task #108197 for DungeonsAndMobs v1.0 generated an exception
java.lang.NoClassDefFoundError: net/minecraft/server/v1_14_R1/NBTBase
at eu.Nexgan.CustomMobs.SchedulerManager.lambda$startLoop$0(SchedulerManager.java:47) ~[?:?]
at org.bukkit.craftbukkit.v1_15_R1.scheduler.CraftTask.run(CraftTask.java:84) ~[patched_1.15.1.jar:git-Paper-51]
at org.bukkit.craftbukkit.v1_15_R1.scheduler.CraftScheduler.mainThreadHeartbeat(CraftScheduler.java:452) ~[patched_1.15.1.jar:git-Paper-51]
at net.minecraft.server.v1_15_R1.MinecraftServer.b(MinecraftServer.java:1179) ~[patched_1.15.1.jar:git-Paper-51]
at net.minecraft.server.v1_15_R1.DedicatedServer.b(DedicatedServer.java:417) ~[patched_1.15.1.jar:git-Paper-51]
at net.minecraft.server.v1_15_R1.MinecraftServer.a(MinecraftServer.java:1106) ~[patched_1.15.1.jar:git-Paper-51]
at net.minecraft.server.v1_15_R1.MinecraftServer.run(MinecraftServer.java:933) ~[patched_1.15.1.jar:git-Paper-51]
at java.lang.Thread.run(Thread.java:748) [?:1.8.0_212]
Caused by: java.lang.ClassNotFoundException: net.minecraft.server.v1_14_R1.NBTBase
at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:90) ~[patched_1.15.1.jar:git-Paper-51]
at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:85) ~[patched_1.15.1.jar:git-Paper-51]
at java.lang.ClassLoader.loadClass(ClassLoader.java:424) ~[?:1.8.0_212]
at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ~[?:1.8.0_212]
... 8 more