[Permities]

I just lost my custom UI made by a friend apparently it crashed my game and I had to reinstall. I decided to come here and download a new one and I decided on the Hunter Compilation which looked like a good one for me. I installed it accordingly and when I logged into my account there was no addon button in the lower lefthand corner as there usually is. If someone could help me with this matter quickly I would be very appreciative, thanks in advance.