Mobs won't spawn on my server + Factions Plugin error

Mobs won't spawn:

Hello. Since I started to have a server, in 1.1.0, everything worked as it should. Until the update 1.2, when no mobs would spawn naturally. I had to use eggs or /spawnmob commands. I've waited to 1.6 because I thought it would fix since it was going to be a update with horses. I were wrong. I've tried to install mob managing plugins and checked all my plugins plus other files. I'm not sure what that is the problem, but if anyone do know how to fix it, please answer.

Faction Error:

When i tried to update my Faction plugin to 1.5.2 the whole faction thing crashed and all data was lost. When i got it working again the old factions still were there but with no members online or offline? The second problem was that the faction files weren't created and where was the old factions saved if there was no faction files left or generated?


Plugins list:

AntiAd
AntiRelog + Combatlog
AutoMessage
ChangedGamemode
ChatClear
ChestShop
Citizens
ClearLag
Core Protect II
CraftBay
CreativeGates
DisableCommands
EnjinMinecraftPlugin
Essentials (All of them)
Factions (1.4.7 working perfect, and i can't update it either)
GAListener
HeadDrops
HealtBar
MCPacks
NoCheatPlus
PvPTimer
SilkSpawners
Trade 0.95
Vault
Votifier
WoodCutter
WorldEdit
WorldGuard
mcMMO

Help would be great!
Sorry for my bad English.

Regards,
KRG123

 

I would recommend checking the configuration files for the following:

Core Protect II

Essentials

WorldGuard

These plugins have built-in protection systems which could be the cause of no mobs spawning. As for the Factions problem, I am not sure about. Try checking your console for error messages.

 

Okay, I'll check them immediately!

I've checked them all, and no of them are blocking or preventing mobs to spawn.
Maybe someone know of a plugin that can spawn mobs on each chunk that is active if that works?

I found out that some few mob do spawn, but that's like 4 per world.

WUT?

EDIT by Moderator: merged posts, please use the edit button instead of double posting.

 

Still no one that knows why it won't spawn?