SOLVED: Wont let me place or destroy blocks after certain amount of jar files

So, I have run into a weird problem that when I go over 12 jar files in my plugins folder. I can't place any blocks in the world. This is the error I get when i try to place a block.

Running Bukkit build 818
Server runs on Debian GNU/Linux

Is there a plugin that is causing this? I fix this problem by just going back to only 12 plugins.

Plugins right now:

-WorldGuard
-WorldEdit
-Permissions
-MyHome
-iConomy
-iChat
-Essentials
-EasyTravel
-DropPlugin
-Commandbook
-BorderGuard

My knowledge on this is very slim. Thank you for your time.

 

i thought commandbook and essentials are thesame?only commandbook has more features?thats what i heard...delete one of them and see if its fixed...if not, upload your whole server via mediafire and i'll see what i can do

 

I went and switched from using permissions to the group manager that comes with essentials. And it seems that my problem is gone. So I guess it was some problem with permissions.