Plugin Help Factions broken?

Hello, so I am currently have a problem with my factions plugin. I am running the more updated version of it (mstore) along with factionsplus and factionchat. But I just discovered that on /f create, it works. But whenever I try to invite somebody, join a faction, etc it doesnt work. I know it isnt a complication between factionsplus and factions because I disabled factionsplus and it didnt work. So what exactly is wrong??
"An internal error occured while attempting to perform this command"

 

Please could you post a list of ur plugins and also is your factions and mstore updated? and what version of minecraft (bukkit) are you on?

 

Worldborder, plugman, worldedit, maintenancemanager, buycraft, massivecore, colouredmotd, combatTracker, vault, Multiverse-Core, permissionsex, worldguard, silkspawners, claimlevels, lottery, iConomy, coreprotect, customjoinleavemessages, rateofxray, WhatIsIt, 1vs1, ChestShop, cShortcut, BanManager, floAuction, Safeedit, essentialsprotect, nocheatplus, chatprotectionplus, essentialsspawn, vanishnopacket, essentialsantibuild, EnjinMinecraftPlugin, McMMO_Party_admin, essentialschat, factions, obsidiandestroyer, factionsplus, factionchat

Version: Bukkit version git-spigot-1.7.9-R0.2-205-g48578ee

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

 

Run Spigot 1.7.10 and see what happens.