Problem/Bug Server Crash, Looking For Answers

I am running on spigot 1.8.7 build #40 and my issue is shortly after start up. The server launches fine and then after around 10 or so minutes it just crashes.
I pastebin'd the crash report here: http://pastebin.com/TWJ9QHx0
Here is a list of my plugins

Plugins (open) Plugins (close)

CoreProtect
dynmap
WorldEdit
Essentials
SimpleWarnings
Announcer
WorldBorder
Votifier
MultiCommand
WorldGuard
ProtocolLib
NoCheatPlus
SignEdit
EssentialsChat
WGRegionEvents
EssentialsAntiBuild
PermissionsEx
mcMMO
WGCustomFlags
Tablist
Vault
MyCommand
EssentialsSpawn
MassiveCore
ChestShop
PlotMe
MasterPromote
Jobs
Auctions
SilkSpawners
PermissionsExTabColors
Factions
WGRegionCommands
Backpack
ChatEx
PlotMe-DefaultGenerator
FactionChat
Multiverse-Core
VirtualPack
Multiverse-Portals
HolographicDisplays

This problem has only started happening recently after a /reload
Any advice or solutions would be amazing considering this is a huge problem that makes my server virtually unplayable.

 

If you're running the server on your computer, please paste your startup code here.

 

disable virtualpack (rename the extension .jar to .jam so it will not load, but not delete anything in case its not the issue)

See if that helps resolve it. Also, not all plugins handle /reload very well - its a very unsafe command to use, and will shatter your server apart when reused multiple times -- even a simple bukkit server with a simple one plugin will be able to /reload only a fixed number of times before it crashes on reload, and requires restarting. The less capable the plugins to clean up and release resources and pointers upon reload, the fewer times it takes to get total failure.

 

@Boomer, thebcbroz is mostly responsible for this. He advocated storing a static instance of the JavaPlugin object in the main class which wrecks havok on the next reload.

@Lord420, master promote is responsible for the crash.