Installing Ultimate Edition: based on ubuntu
 

I just installed my new Linux distribution called ultimate edition which is based on Ubuntu and after instalation I can't login to the desktop. If gnome it just sends me back to login screen, and with plasma it just freezes around 3/4 of the loading

Try booting to maintenance mode (or whatever Ubuntu might call it) or to a Live Image and look in the log files. I'd start with /var/log/syslog, /var/log/Xorg.0.log. You may find a hint there as to what is going wrong.

I check the files and nothing came up saying there was a problem. When I try to login it freezes.

It sounds as if the issue might lie with your graphics card and drivers. What type of video card is installed in that machine?

If you are not sure and cannot determine it, post the make and model of the computer.

I have an AMD R9 380. It works when I put in in live setup though.

oh, i saw your other thread and was about to post my 2ct there, but then i thought, wtf, i don't want to be a negative nancy...

anyhow, there was a thread about ultimate edition here recently, and my mind is made up about this "distro":

• as always, making promises without checking if they can keep them. esp. the promise of ultimate user friendliness
• the project of one (or maybe a few) egomaniacs, a la "we bring you only the best" blah.
• a distro that is based on a distro that is based on a distro. nothing can go wrong, right?

please stay with one of the top six from this list.
not promising that it will work ootb, but at least you have a realistic chance of getting some help and solutions.