Error with NPCs (Citizens2)

[14:38:04 WARN]: Entity threw exception at 2019hub:-24.5,102.0,-27.5
[14:38:04 WARN]: java.lang.NoSuchMethodError: net.minecraft.server.v1_14_R1.Entity.at()Z
[14:38:04 WARN]:        at net.citizensnpcs.nms.v1_14_R1.util.NMSImpl.trySwim(NMSImpl.java:1104)
[14:38:04 WARN]:        at net.citizensnpcs.nms.v1_14_R1.util.NMSImpl.trySwim(NMSImpl.java:1096)
[14:38:04 WARN]:        at net.citizensnpcs.util.NMS.trySwim(NMS.java:421)
[14:38:04 WARN]:        at net.citizensnpcs.npc.CitizensNPC.update(CitizensNPC.java:314)
[14:38:04 WARN]:        at net.citizensnpcs.nms.v1_14_R1.entity.EntityHumanNPC.tick(EntityHumanNPC.java:439)
[14:38:04 WARN]:        at net.minecraft.server.v1_14_R1.WorldServer.entityJoinedWorld(WorldServer.java:579)
[14:38:04 WARN]:        at net.minecraft.server.v1_14_R1.World.a(World.java:933)
[14:38:04 WARN]:        at net.minecraft.server.v1_14_R1.WorldServer.doTick(WorldServer.java:354)
[14:38:04 WARN]:        at net.minecraft.server.v1_14_R1.MinecraftServer.b(MinecraftServer.java:1192)
[14:38:04 WARN]:        at net.minecraft.server.v1_14_R1.DedicatedServer.b(DedicatedServer.java:420)
[14:38:04 WARN]:        at net.minecraft.server.v1_14_R1.MinecraftServer.a(MinecraftServer.java:1064)
[14:38:04 WARN]:        at net.minecraft.server.v1_14_R1.MinecraftServer.run(MinecraftServer.java:908)
[14:38:04 WARN]:        at java.lang.Thread.run(Thread.java:748)
[14:38:04 ERROR]: [global] TIMING_STACK_CORRUPTION - Report this to Paper! This is a potential bug in Paper (TimingIdentifier{id=Minecraft:## tickEntity - net.citizensnpcs.nms.v1_14_R1.entity.EntityHumanNPC} did not stopTiming)
java.lang.Throwable: null
        at co.aikar.timings.TimingHandler.popTimingStack(TimingHandler.java:135) ~[patched_1.14.3.jar:git-Paper-111]
        at co.aikar.timings.TimingHandler.stopTiming(TimingHandler.java:117) ~[patched_1.14.3.jar:git-Paper-111]
        at net.minecraft.server.v1_14_R1.World.a(World.java:945) ~[patched_1.14.3.jar:git-Paper-111]
        at net.minecraft.server.v1_14_R1.WorldServer.doTick(WorldServer.java:354) ~[patched_1.14.3.jar:git-Paper-111]
        at net.minecraft.server.v1_14_R1.MinecraftServer.b(MinecraftServer.java:1192) ~[patched_1.14.3.jar:git-Paper-111]
        at net.minecraft.server.v1_14_R1.DedicatedServer.b(DedicatedServer.java:420) ~[patched_1.14.3.jar:git-Paper-111]
        at net.minecraft.server.v1_14_R1.MinecraftServer.a(MinecraftServer.java:1064) ~[patched_1.14.3.jar:git-Paper-111]
        at net.minecraft.server.v1_14_R1.MinecraftServer.run(MinecraftServer.java:908) ~[patched_1.14.3.jar:git-Paper-111]
        at java.lang.Thread.run(Thread.java:748) [?:1.8.0_212]