No one can build on my server!

I have the permissions plugin and the essentials plugin. Don't forget I also have the world edit plugin. Everything has been successfully installed and set up, but no one and not even ME can build. I checked on spawn protection and everything and that's not even there! So I don't know what's going on. Can someone help? Thanks!
-Nalat
P.S. Here's a screenshot of my server.properties:

 

dude u must put BUILD = TRUE on permissions

 

I believe people need your permissions>groups.yml file to tell you whats going wrong..

 

Ok I just found out suddenly there is NOTHING in the .yml files!!! This is weird and I'll fix it srry guys. If I have more trouble I'll tell you.

 

Yeah, they come like that.

If you need help knowing what to put in them then I can link you to a post I made for someone who had the exact same problem.

btw, if everything had been installed successfully and set up then they wouldn't be empty.

 

You have no idea how many people I tell the same thing to. Why would you download something without knowing what it does?

 

I knew what it did... I just forgot it came empty.

 

JSYK for the future, if you just copy the Permissions jar file and don't copy the other files, they're automatically generated