Ever 1.3 BETA error 1

[23:23:45] [Server thread/ERROR] [Sponge]: Could not pass ClientConnectionEvent$Join$Impl to Plugin{id=everinformations, name=EverInformations, version=1.2, description=Manage informations, url=http://evercraft.fr/, authors=[rexbut], source=D:\For XX\setup\minecraft\Server\testing\Forge 2202 pixelmon\mods\EverInformations-1.3-BETA.jar}
java.lang.IllegalArgumentException: Prefix is 19 characters long! It must be at most 16.
        at net.minecraft.scoreboard.ScorePlayerTeam.setPrefix(SourceFile:635) ~[bce.class:?]
        at org.spongepowered.common.scoreboard.builder.SpongeTeamBuilder.build(SpongeTeamBuilder.java:172) ~[SpongeTeamBuilder.class:1.10.2-2202-5.1.0-BETA-2099]
        at fr.evercraft.everapi.services.nametag.ENameTagService.sendNameTag(ENameTagService.java:106) ~[ENameTagService.class:1.3-BETA]
        at fr.evercraft.everapi.services.nametag.ENameTagService.sendNameTag(ENameTagService.java:87) ~[ENameTagService.class:1.3-BETA]
        at fr.evercraft.everapi.server.player.EPlayer.sendNameTag(EPlayer.java:479) ~[EPlayer.class:1.3-BETA]
        at fr.evercraft.everinformations.nametag.ManagerNameTag.addPlayer(ManagerNameTag.java:89) ~[ManagerNameTag.class:1.3-BETA]
        at fr.evercraft.everinformations.EIListener.onPlayerJoin(EIListener.java:68) ~[EIListener.class:1.3-BETA]
        at org.spongepowered.common.event.listener.JoinListener_EIListener_onPlayerJoin97.handle(Unknown Source) ~[?:?]
        at org.spongepowered.common.event.RegisteredListener.handle(RegisteredListener.java:95) ~[RegisteredListener.class:1.10.2-2202-5.1.0-BETA-2099]
        at org.spongepowered.mod.event.SpongeModEventManager.post(SpongeModEventManager.java:301) [SpongeModEventManager.class:1.10.2-2202-5.1.0-BETA-2099]
        at org.spongepowered.mod.event.SpongeModEventManager.post(SpongeModEventManager.java:285) [SpongeModEventManager.class:1.10.2-2202-5.1.0-BETA-2099]
        at org.spongepowered.mod.event.SpongeModEventManager.post(SpongeModEventManager.java:326) [SpongeModEventManager.class:1.10.2-2202-5.1.0-BETA-2099]
        at org.spongepowered.mod.event.SpongeModEventManager.post(SpongeModEventManager.java:314) [SpongeModEventManager.class:1.10.2-2202-5.1.0-BETA-2099]
        at org.spongepowered.common.SpongeImpl.postEvent(SpongeImpl.java:141) [SpongeImpl.class:1.10.2-2202-5.1.0-BETA-2099]
        at net.minecraft.server.management.PlayerList.initializeConnectionToPlayer(PlayerList.java:1627) [mp.class:?]
        at net.minecraftforge.fml.common.network.handshake.NetworkDispatcher.completeServerSideConnection(NetworkDispatcher.java:260) [NetworkDispatcher.class:?]
        at net.minecraftforge.fml.common.network.handshake.NetworkDispatcher.access$100(NetworkDispatcher.java:73) [NetworkDispatcher.class:?]
        at net.minecraftforge.fml.common.network.handshake.NetworkDispatcher$1.func_73660_a(NetworkDispatcher.java:209) [NetworkDispatcher$1.class:?]
        at net.minecraft.network.NetworkManager.func_74428_b(NetworkManager.java:287) [eo.class:?]
        at net.minecraft.network.NetworkSystem.func_151269_c(NetworkSystem.java:180) [md.class:?]
        at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:732) [MinecraftServer.class:?]
        at net.minecraft.server.dedicated.DedicatedServer.func_71190_q(DedicatedServer.java:387) [ld.class:?]
        at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:613) [MinecraftServer.class:?]
        at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:471) [MinecraftServer.class:?]
        at java.lang.Thread.run(Unknown Source) [?:1.8.0_121]