org.bukkit.command.CommandException: Unhandled exception executing command 'dynmap' in plugin dynmap v2.5-Dev201706100405
        at org.bukkit.command.PluginCommand.execute(PluginCommand.java:47) ~[server.jar:git-Spigot-093165d-cb3d14c]
        at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:149) ~[server.jar:git-Spigot-093165d-cb3d14c]
        at org.bukkit.craftbukkit.v1_14_R1.CraftServer.dispatchCommand(CraftServer.java:707) ~[server.jar:git-Spigot-093165d-cb3d14c]
        at net.minecraft.server.v1_14_R1.PlayerConnection.handleCommand(PlayerConnection.java:1670) ~[server.jar:git-Spigot-093165d-cb3d14c]
        at net.minecraft.server.v1_14_R1.PlayerConnection.a(PlayerConnection.java:1510) ~[server.jar:git-Spigot-093165d-cb3d14c]
        at net.minecraft.server.v1_14_R1.PacketPlayInChat.a(PacketPlayInChat.java:47) ~[server.jar:git-Spigot-093165d-cb3d14c]
        at net.minecraft.server.v1_14_R1.PacketPlayInChat.a(PacketPlayInChat.java:1) ~[server.jar:git-Spigot-093165d-cb3d14c]
        at net.minecraft.server.v1_14_R1.PlayerConnectionUtils.lambda$0(PlayerConnectionUtils.java:13) ~[server.jar:git-Spigot-093165d-cb3d14c]
        at net.minecraft.server.v1_14_R1.TickTask.run(SourceFile:18) [server.jar:git-Spigot-093165d-cb3d14c]
        at net.minecraft.server.v1_14_R1.IAsyncTaskHandler.executeTask(SourceFile:135) [server.jar:git-Spigot-093165d-cb3d14c]
        at net.minecraft.server.v1_14_R1.IAsyncTaskHandlerReentrant.executeTask(SourceFile:23) [server.jar:git-Spigot-093165d-cb3d14c]
        at net.minecraft.server.v1_14_R1.IAsyncTaskHandler.executeNext(SourceFile:114) [server.jar:git-Spigot-093165d-cb3d14c]
        at net.minecraft.server.v1_14_R1.MinecraftServer.aW(MinecraftServer.java:895) [server.jar:git-Spigot-093165d-cb3d14c]
        at net.minecraft.server.v1_14_R1.MinecraftServer.executeNext(MinecraftServer.java:888) [server.jar:git-Spigot-093165d-cb3d14c]
        at net.minecraft.server.v1_14_R1.IAsyncTaskHandler.awaitTasks(SourceFile:123) [server.jar:git-Spigot-093165d-cb3d14c]
        at net.minecraft.server.v1_14_R1.MinecraftServer.sleepForTick(MinecraftServer.java:872) [server.jar:git-Spigot-093165d-cb3d14c]
        at net.minecraft.server.v1_14_R1.MinecraftServer.run(MinecraftServer.java:805) [server.jar:git-Spigot-093165d-cb3d14c]
        at java.lang.Thread.run(Unknown Source) [?:1.8.0_201]
Caused by: java.lang.NullPointerException
        at org.dynmap.bukkit.DynmapPlugin.onCommand(DynmapPlugin.java:937) ~[?:?]
        at org.bukkit.command.PluginCommand.execute(PluginCommand.java:45) ~[server.jar:git-Spigot-093165d-cb3d14c]
        ... 17 more