Players can place signs, but cant break them, any help?

Code:

[15:01:43 INFO]: Plugins (31): WorldBorder, GroupManager, SpawnReminder, Minequery, WorldEdit, RewardVoting, CommandRank, Vault, CombatTag, Light, WorldGuard, PvPTimer, ObsidianDestroyer, SimpleRamChecker, EnchLimiter, NoPickup, JoinSound, WhatIsIt, Votifier, mcMMO, Stuck_My_Life, HotPotato, Essentials, floAuction, ParkourPalace, GenerousMobs, EssentialsProtect, EssentialsSpawn, EssentialsAntiBuild, EssentialsChat, Factions

Here are my plugins. I run a faction server and players cannot break any signs anywhere, even in their own faction base. they can place them only. any ideas?

 

Do you get any message trying to break them?

 

I Might Be Saying Sth Stupid Right Now But Are They Holding Redstone Or Inc Sac While Trying To Break Them Cuz If Yes It Won't Work

 

Go in your GroupManager folder and open the permissiob file.
Then go to the essentials section and give the group default
"- essentials.signs.break"
And in your permissions file in the main folder of minecraft add this too.

(my english is very bad)

 

rayzorstyle that permission node does not exist.