Command Blocks being blocked

Im trying to run a multiplayer pixelmon server, have everything working but keep getting

e[Ke[31;1m[00:04:40] [Server thread/ERROR] [Sponge]: Error occurred while executing command ‘spawnpoint @a[x=1186,y=65,z=-468,3] 1186 65 -468’ for source TileEntityCommandBlock{tileType=minecraft:command_block, world=WorldServer{Name=Johto, DimensionId=0, DimensionType=minecraft:overworld}, pos=BlockPos{x=-786, y=64, z=-310}, blockMetadata=-1}: net.minecraft.command.CommandException: commands.generic.selector_argument
java.lang.RuntimeException: net.minecraft.command.CommandException: commands.generic.selector_argument
at org.spongepowered.common.command.MinecraftCommandWrapper.process(MinecraftCommandWrapper.java:114) ~[MinecraftCommandWrapper.class:1.12.2-2838-7.2.0]
at org.spongepowered.common.command.SpongeCommandDispatcher.process(SpongeCommandDispatcher.java:355) ~[SpongeCommandDispatcher.class:1.12.2-2838-7.2.0]
at org.spongepowered.common.command.SpongeCommandManager.process(SpongeCommandManager.java:360) [SpongeCommandManager.class:1.12.2-2838-7.2.0]

in console, seems command blocks are being blocked by something?

e[Ke[31;1m[00:04:40] [Server thread/ERROR] [Sponge]: Error occurred while executing command ‘spawnpoint @a[x=1186,y=65,z=-468,3] 1186 65 -468’ for source TileEntityCommandBlock{tileType=minecraft:command_block, world=WorldServer{Name=Johto, DimensionId=0, DimensionType=minecraft:overworld}, pos=BlockPos{x=-786, y=64, z=-310}, blockMetadata=-1}: net.minecraft.command.CommandException: commands.generic.selector_argument
java.lang.RuntimeException: net.minecraft.command.CommandException: commands.generic.selector_argument
at org.spongepowered.common.command.MinecraftCommandWrapper.process(MinecraftCommandWrapper.java:114) ~[MinecraftCommandWrapper.class:1.12.2-2838-7.2.0]
at org.spongepowered.common.command.SpongeCommandDispatcher.process(SpongeCommandDispatcher.java:355) ~[SpongeCommandDispatcher.class:1.12.2-2838-7.2.0]
at org.spongepowered.common.command.SpongeCommandManager.process(SpongeCommandManager.java:360) [SpongeCommandManager.class:1.12.2-2838-7.2.0]
at net.minecraft.command.ServerCommandManager.func_71556_a(SourceFile:665) [dh.class:?]
at net.minecraft.tileentity.CommandBlockBaseLogic.func_145755_a(SourceFile:125) [amj.class:?]
at net.minecraft.block.BlockCommandBlock.func_193387_a(SourceFile:115) [apo.class:?]
at net.minecraft.block.BlockCommandBlock.func_180650_b(SourceFile:103) [apo.class:?]
at org.spongepowered.common.event.tracking.TrackingUtil.updateTickBlock(TrackingUtil.java:276) [spongeforge-1.12.2-2838-7.2.0.jar:1.12.2-2838-7.2.0]
at net.minecraft.world.WorldServer.redirect$zlk000$onUpdateTick(WorldServer.java:3946) [oo.class:?]
at net.minecraft.world.WorldServer.func_72955_a(WorldServer.java:737) [oo.class:?]
at net.minecraft.world.WorldServer.func_72835_b(WorldServer.java:223) [oo.class:?]
at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:756) [MinecraftServer.class:?]
at net.minecraft.server.dedicated.DedicatedServer.func_71190_q(DedicatedServer.java:397) [nz.class:?]
at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:668) [MinecraftServer.class:?]
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:526) [MinecraftServer.class:?]
at java.lang.Thread.run(Thread.java:748) [?:1.8.0_191]
Caused by: net.minecraft.command.CommandException: commands.generic.selector_argument

Full error code

i am running Luckperms, Command blocks are enabled in Server.properties

Hi, have you solved this already?