Server crashing, players get timed out message

hey guys,

So I've beeh aving this problem a lot lateley on the server, where it keeps crashing and sends the player a timed out message. this happens in between of 2-8 hours after the server started.
There already have been some suggestions since I posted this problem on spigot's forums, but it was like they said 1 thing that could cause the problem and don't give any solution.
2 things have been said about the crash, one was a plugin issue, the other one had to do with a database of "LoginSecurity" the plugin.
I've tried removing the plugins one by one, and I changed from LoginSecurity to AuthMe. it didn't help, the server kept crashing.
so I am at a loss. Here are 2 crash logs of the server.
1: http://pastebin.com/dUu1YyPG
2: http://pastebin.com/h0D1hstK

Here also is the list of plugins:
CoreProtect, WorldEdit, Questioner, Essentials, AuthMe, ClearLag, HolographicDisplay, Votifier, AutoSaveWorld, CryingStarsCustomPlugin, EssentialsProtect, EssentialsSpawn, EssentialsChat, PermissionsEx, mcMMO, MineResetLite, Vault, KeepDeathDrop, MassiveCore,EnjinMinecraftPlugin, TitleManager, Towny, MobArena, Towny Chat, Residence, Vampire, ResidenceSigns

I hope that you guys know what the problem is

RedLegJohnny