Plss help me ... i always getting this error plss plss plss 
Here is the image that contains error to my server [Blocked Image: https://imgur.com/a/wO202]https://imgur.com/a/wO202
the server always saying Internal Exception: javaIOException :An existing connection was forcibly close by the remote host
i cant join to my server .. but the server is online plss help me pls pls plssssss
Plugins :
Code
AdvancedPortals
AntiWorldFly
AutoSaveWorld
Citizens
ClearLag
CommandItems
CommandNPC
CommandSpy
CompatNoCheatPlus
Essentials
FastAsyncWorldEdit
HideAndCustomPlugins
HideStream
JumpBlocks
MultiWorldMoney
Multiverse-Core
Multiverse-Portals
NoCheatPlus
NoFall
OldCombatMechanics
PerWorldChatPlus
PerWorldInventory
PerWorldSpawn
PermissionsEx
PlayerPoints
PlugMan
PluginMetrics
ProtocolLib
QuickSoup
ServerTP
Spawntp
Updater
Vault
ViaVersion
VoidSpawn
WorldEdit
WorldGuard
uKitPvP
[Blocked Image: https://imgur.com/a/wO202]