Question Can't injure mobs

On my server the people who don't have all perms can't damage aggresive or unagressive mobs. The mobs injure them but they can't injure mobs.

I have the plugins:

BuycraftX
Clearlag
Crates plus
Custom enchants
Easy kits
Fly
Holographic displays
McKinney
Multiverse core
Multiverse portals
Opening
Permissions ex (pex)
Power ranks
Text replaced
Worldedit
Worldguard

 

@Royal_Scribblz
Do not advertise your server. Edit the post and remove the IP.

Most likely, one of the plugins are preventing the players from damaging entities. Try temporarily removing all the plugins from your server. Does that fix the problem? If so, slowly re-add the plugins until you find which one is causing the problem. Once you find it, go to it's plugin page and see if you missed a permission.

 

I didn't mean to advertise I though someone might be able to join the server and see a problem

And thanks for the advice I'll remove plugins temporarily and hopefully it works