Cant connect to server

When i try joining my server i get this error:
EXCEPTION:JAVA.IO.IOEXCEPTION:RECEIVED STRING LENGTH LONGER THAN MAXIMUM ALLOWED (22>16)


Ive looked around the internet and tried things that people have said, but nothing has helped.

Console log:

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Code:

C:\Users\Alex\Desktop\UHC Server>java -Xmx1024M -jar craftbukkit.jar -o true
Loading libraries, please wait...
[15:28:04 INFO]: Starting minecraft server version 1.7.2
[15:28:04 INFO]: Loading properties
[15:28:04 INFO]: Default game type: SURVIVAL
[15:28:04 INFO]: Generating keypair
[15:28:04 INFO]: Starting Minecraft server on *:25565
[15:28:05 INFO]: This server is running CraftBukkit version git-Bukkit-1.7.2-R0.
3-2-g85f5776-b3024jnks (MC: 1.7.2) (Implementing API version 1.7.2-R0.4-SNAPSHOT
)
[15:28:05 INFO]: ----- Bukkit Auto Updater -----
[15:28:05 INFO]: It appears that you're running a Development Build, when you've
specified in bukkit.yml that you prefer to run Recommended Builds.
[15:28:05 INFO]: If you would like to be kept informed about new Development Bui
ld releases, it is recommended that you change 'preferred-channel' in your bukki
t.yml to 'dev'.
[15:28:05 INFO]: With that set, you will be told whenever a new version is avail
able for download, so that you can always keep up to date and secure with the la
test fixes.
[15:28:05 INFO]: If you would like to disable this warning, simply set 'suggest-
channels' to false in bukkit.yml.
[15:28:05 INFO]: ----- ------------------- -----
[15:28:05 INFO]: [BetterAlias] Loading BetterAlias v1.4.2
[15:28:05 INFO]: [WorldBorder] Loading WorldBorder v1.8.0
[15:28:05 INFO]: [IgnoreAll] Loading IgnoreAll v1.1
[15:28:05 INFO]: [GroupManager] Loading GroupManager v2.0 (Pre2.12.1.8) (Phoenix
)
[15:28:05 INFO]: [WorldEdit] Loading WorldEdit v5.6.3
[15:28:05 INFO]: [NoCheatPlus] Loading NoCheatPlus v3.10.6-RC-sMD5NET-b644
[15:28:05 INFO]: [Thrower] Loading Thrower v0.3
[15:28:05 INFO]: [MotdManager] Loading MotdManager v1.41-b20
[15:28:05 INFO]: [cChat] Loading cChat v2.2
[15:28:05 INFO]: [AlstersAnnouncing] Loading AlstersAnnouncing v2.6.1 - For 1.5.
1
[15:28:05 INFO]: [ScoreboardStats] Loading ScoreboardStats v0.7.5
[15:28:05 INFO]: [Multiverse-Core] Loading Multiverse-Core v2.4-b527
[15:28:05 INFO]: [TellM] Loading TellM v0.0.1
[15:28:05 INFO]: [BetterVanish] Loading BetterVanish v3.1
[15:28:05 INFO]: [WorldGuard] Loading WorldGuard v5.9
[15:28:05 INFO]: [PlayerFreeze] Loading PlayerFreeze v1.5
[15:28:05 INFO]: [Essentials] Loading Essentials v2.13.1
[15:28:05 INFO]: [EssentialsSpawn] Loading EssentialsSpawn v2.13.1
[15:28:05 INFO]: [Multiverse-Portals] Loading Multiverse-Portals v2.4-b548
[15:28:05 INFO]: [Multiverse-Inventories] Loading Multiverse-Inventories v2.5-b3
35
[15:28:05 INFO]: [EssentialsChat] Loading EssentialsChat v2.13.1
[15:28:05 INFO]: [WGCustomFlags] Loading WGCustomFlags v1.7
[15:28:05 INFO]: [WGRegionEffects] Loading WGRegionEffects v1.4
[15:28:05 INFO]: Preparing level "SpawnWorld"
[15:28:05 INFO]: Preparing start region for level 0 (Seed: -2121002639637136638)
 
[15:28:06 INFO]: [BetterAlias] Enabling BetterAlias v1.4.2
[15:28:06 INFO]: [WorldBorder] Enabling WorldBorder v1.8.0
[15:28:06 INFO]: [WorldBorder] [CONFIG] Using elliptic/round border, knockback o
f 3.0 blocks, and timer delay of 5.
[15:28:06 INFO]: [WorldBorder] [CONFIG] Border-checking timed task started.
[15:28:06 INFO]: [WorldBorder] [CONFIG] World "SpawnWorld" has border radius 50
at X: 0.6 Z: 0.5
[15:28:06 INFO]: [WorldBorder] [CONFIG] World "UHC" has border radius 1000 at X:
0.5 Z: 0.5
[15:28:06 INFO]: [WorldBorder] For reference, the main world's spawn location is
at X: 0.0 Y: 100.0 Z: 0.0
[15:28:06 INFO]: [IgnoreAll] Enabling IgnoreAll v1.1
[15:28:06 INFO]: [IgnoreAll] IgnoreAll Version 1.1 has been enabled!
[15:28:06 INFO]: [GroupManager] Enabling GroupManager v2.0 (Pre2.12.1.8) (Phoeni
x)
[15:28:06 WARN]: GroupManager - WARNING - Inherited group 'admin' not found for
group Owner. Ignoring entry in file: plugins\GroupManager\worlds\spawnworld\grou
ps.yml
[15:28:06 WARN]: GroupManager - WARNING - Inherited group 'moderator' not found
for group staff. Ignoring entry in file: plugins\GroupManager\worlds\spawnworld\
groups.yml
[15:28:06 WARN]: GroupManager - WARNING - There is no group Builder, as stated f
or player snowleo: Set to 'Default' for file: plugins\GroupManager\worlds\world\
users.yml
[15:28:06 WARN]: GroupManager - WARNING - There is no group Moderator, as stated
for player KHobbits: Set to 'Default' for file: plugins\GroupManager\worlds\wor
ld\users.yml
[15:28:06 WARN]: GroupManager - WARNING - There is no group Moderator, as stated
for player ElgarL: Set to 'Default' for file: plugins\GroupManager\worlds\world
\users.yml
[15:28:06 INFO]: GroupManager - INFO - World Found: spawnworld
[15:28:06 INFO]: GroupManager - INFO - World Found: world
[15:28:06 INFO]: GroupManager - INFO - Superperms support enabled.
[15:28:06 INFO]: GroupManager - INFO - Scheduled Data Saving is set for every 10
minutes!
[15:28:06 INFO]: GroupManager - INFO - Backups will be retained for 24 hours!
[15:28:06 INFO]: GroupManager version 2.0 (Pre2.12.1.8) (Phoenix) is enabled!
[15:28:06 INFO]: [WorldEdit] Enabling WorldEdit v5.6.3
[15:28:06 INFO]: WEPIF: GroupManager detected! Using GroupManager for permission
s.
[15:28:06 INFO]: [NoCheatPlus] Enabling NoCheatPlus v3.10.6-RC-sMD5NET-b644
[15:28:06 WARN]: [NoCheatPlus] Could not set up native access for your specific
Minecraft + server-mod version.
[15:28:06 WARN]: [NoCheatPlus] API-only MCAccess: Some features will likely not
function properly, performance might suffer.
[15:28:06 WARN]: [NoCheatPlus]  Check for updates at BukkitDev: http://dev.bukki
t.org/server-mods/nocheatplus/
[15:28:06 WARN]: [NoCheatPlus]  Development builds: http://ci.ecocitycraft.com/j
ob/NoCheatPlus/
[15:28:06 INFO]: [NoCheatPlus] McAccess set to: 1.4.6|1.4.7|1.5.x|1.6.1|1.6.2|?
/ Bukkit-API
[15:28:06 INFO]: [NoCheatPlus] Added block-info for Minecraft 1.5 blocks.
[15:28:06 INFO]: [NoCheatPlus] Added block-info for Minecraft 1.6.1 blocks.
[15:28:06 INFO]: [NoCheatPlus] Inventory checks: FastConsume is available, disab
led InstantEat.
[15:28:06 INFO]: [NoCheatPlus] Version 3.10.6-RC-sMD5NET-b644 is enabled.
[15:28:06 INFO]: [Thrower] Enabling Thrower v0.3
[15:28:06 INFO]: [Thrower] Enabled!
[15:28:06 INFO]: [MotdManager] Enabling MotdManager v1.41-b20
[15:28:06 INFO]: [MotdManager] version 1.41-b20 is enabled!
[15:28:06 INFO]: [cChat] Enabling cChat v2.2
[15:28:06 INFO]: [AlstersAnnouncing] Enabling AlstersAnnouncing v2.6.1 - For 1.5
.1
[15:28:06 INFO]: AlstersAnnouncing v2.6.1 - For 1.5.1 is enabled!
 
[15:28:06 INFO]: [ScoreboardStats] Enabling ScoreboardStats v0.7.5
[15:28:06 INFO]: Registered replacers: [PlayerPingVariable, GeneralVariables, St
atsVariables]
[15:28:07 INFO]: [Multiverse-Core] Enabling Multiverse-Core v2.4-b527
[15:28:07 INFO]: [Multiverse-Core] - Version 2.4-b527 (API v14) Enabled - By Rig
by, fernferret, lithium3141 and main--
[15:28:07 INFO]: [AllPay] - Version 10.0 - hooked into Essentials Economy for Mu
ltiverse-Core v2.4-b527
[15:28:07 INFO]: [Multiverse-Core] Loading World & Settings - 'SpawnWorld' - Env
: NORMAL - Type: NORMAL & seed: -2121002639637136638
[15:28:07 INFO]: [Multiverse-Core] Loading World & Settings - 'SpawnWorld_the_en
d' - Env: THE_END - Type: NORMAL & seed: -2121002639637136638
[15:28:07 INFO]: Preparing start region for level 1 (Seed: -2121002639637136638)
 
[15:28:07 INFO]: [Multiverse-Core] Loading World & Settings - 'UHC' - Env: NORMA
L - Type: NORMAL & seed: -5152332305828240840
[15:28:07 INFO]: Preparing start region for level 2 (Seed: -5152332305828240840)
 
[15:28:08 INFO]: [Multiverse-Core] 3 - World(s) loaded.
[15:28:08 INFO]: [TellM] Enabling TellM v0.0.1
[15:28:08 INFO]: [BetterVanish] Enabling BetterVanish v3.1
[15:28:08 INFO]: BetterVanish Enabled Sucessfully!
[15:28:08 INFO]: [WorldGuard] Enabling WorldGuard v5.9
[15:28:08 INFO]: [WorldGuard] (SpawnWorld) TNT ignition is PERMITTED.
[15:28:08 INFO]: [WorldGuard] (SpawnWorld) Lighters are PERMITTED.
[15:28:08 INFO]: [WorldGuard] (SpawnWorld) Lava fire is blocked.
[15:28:08 INFO]: [WorldGuard] (SpawnWorld) Fire spread is UNRESTRICTED.
[15:28:08 INFO]: [WorldGuard] Loaded configuration for world 'SpawnWorld'
[15:28:08 INFO]: [WorldGuard] (SpawnWorld_the_end) TNT ignition is PERMITTED.
[15:28:08 INFO]: [WorldGuard] (SpawnWorld_the_end) Lighters are PERMITTED.
[15:28:08 INFO]: [WorldGuard] (SpawnWorld_the_end) Lava fire is blocked.
[15:28:08 INFO]: [WorldGuard] (SpawnWorld_the_end) Fire spread is UNRESTRICTED.
[15:28:08 INFO]: [WorldGuard] Loaded configuration for world 'SpawnWorld_the_end
'
[15:28:08 INFO]: [WorldGuard] (UHC) TNT ignition is PERMITTED.
[15:28:08 INFO]: [WorldGuard] (UHC) Lighters are PERMITTED.
[15:28:08 INFO]: [WorldGuard] (UHC) Lava fire is blocked.
[15:28:08 INFO]: [WorldGuard] (UHC) Fire spread is UNRESTRICTED.
[15:28:08 INFO]: [WorldGuard] Loaded configuration for world 'UHC'
[15:28:08 INFO]: [WorldGuard] 1 regions loaded for 'SpawnWorld'
[15:28:08 INFO]: [WorldGuard] 0 regions loaded for 'SpawnWorld_the_end'
[15:28:08 INFO]: [WorldGuard] 0 regions loaded for 'UHC'
[15:28:08 INFO]: [PlayerFreeze] Enabling PlayerFreeze v1.5
[15:28:08 INFO]: PlayerFreeze v1.5 enabled!
[15:28:08 INFO]: [Essentials] Enabling Essentials v2.13.1
[15:28:08 INFO]: Essentials: Using GroupManager based permissions.
[15:28:08 INFO]: [EssentialsSpawn] Enabling EssentialsSpawn v2.13.1
[15:28:08 INFO]: [Multiverse-Portals] Enabling Multiverse-Portals v2.4-b548
[15:28:08 INFO]: [Multiverse-Portals] - Version 2.4-b548 Enabled - By Rigby and
fernferret
[15:28:08 INFO]: [Multiverse-Portals]  0 - Portals(s) loaded
[15:28:08 INFO]: [Multiverse-Inventories] Enabling Multiverse-Inventories v2.5-b
335
[15:28:08 INFO]: [Multiverse-Inventories 2.5-b335] enabled.
[15:28:08 INFO]: [EssentialsChat] Enabling EssentialsChat v2.13.1
[15:28:08 INFO]: [WGCustomFlags] Enabling WGCustomFlags v1.7
[15:28:08 INFO]: [WGCustomFlags] Loading configuration...
[15:28:08 INFO]: [WGCustomFlags] Configuration loaded.
[15:28:08 INFO]: [WGRegionEffects] Enabling WGRegionEffects v1.4
[15:28:08 INFO]: Added custom flag "effects" to WorldGuard.
[15:28:08 INFO]: Server permissions file permissions.yml is empty, ignoring it
[15:28:08 INFO]: Done (3.293s)! For help, type "help" or "?"
[15:28:08 WARN]: [NoCheatPlus] The block breaking data is incomplete, default to
allow instant breaking:
[15:28:08 WARN]: --- Missing entries -------------------------------
[15:28:08 WARN]: * MISSING 160(STAINED_GLASS_PANE / SOLID+IGN_PASSABLE+GROUND+GR
OUND_HEIGHT)
[15:28:08 WARN]: * MISSING 161(LEAVES_2 / SOLID+IGN_PASSABLE+GROUND+GROUND_HEIGH
T)
[15:28:08 WARN]: * MISSING 162(LOG_2 / SOLID+GROUND)
[15:28:08 WARN]: * MISSING 163(ACACIA_STAIRS / SOLID+IGN_PASSABLE+GROUND+GROUND_
HEIGHT)
[15:28:08 WARN]: * MISSING 164(DARK_OAK_STAIRS / SOLID+IGN_PASSABLE+GROUND+GROUN
D_HEIGHT)
[15:28:08 WARN]: * MISSING 174(PACKED_ICE / SOLID+GROUND)
[15:28:08 WARN]: * MISSING 175(DOUBLE_PLANT / IGN_PASSABLE)
[15:28:08 INFO]: [NoCheatPlus] Post-enable running...
[15:28:08 INFO]: [NoCheatPlus] Post-enable finished.
[15:28:08 INFO]: GroupManager - INFO - Bukkit Permissions Updated!
[15:28:29 INFO]: UUID of player alster551 is 23f6d0c1db0243ea9a8d1debc203f076
[15:28:29 INFO]: alster551[/127.0.0.1:63491] logged in with entity id 319 at ([S
pawnWorld] 0.450163978624874, 100.0, 0.49621844460711845)
[15:28:29 INFO]: alster551 lost connection: Disconnected
[15:28:29 INFO]: Quit> alster551
>
 

It was working fine before, but I logged out, then when i tried to log back in, i get the error. Any ideas?

 

It's caused by a chat/alias Plugin.
May it's the playerlist (if you press tab). It can only handle with names of max 16 characters. If a plugin adds something to it like a color or a prefix, you increase the characters of the list. In your case it adds 22-9= 13 characters.

 

Yes, i thought the problem was that i had enabled change-playerlist in essentials, but after i removed it, still the same problem.