You keep saying "nothing".
What the heck do you mean nothing?
What are you doing? What happens when you do whatever it is you're doing.
And also...
1. NEVER, repeat, NEVER overwrite/individually extract an addon's folders into the respective folders you THINK they should go into UNLESS for some reason an author of an addon suggests it to you.
I know for a fact some of our code expects our code to reside in addons.
If by nothing you actually mean it's saying "you don't have access", then;
2. If you deleted all of the previous data/ULib/*.txt files...and you didn't follow the ulx_readme.txt file instructions for editing gmod/settings/users.txt ... then ULib has no idea who should be admin.
3. see zakap's original post