Help with my UI
 

I just download and installed LUI V3 and I am having a little trouble with one of the addons. I attached a screenshot and circled the thing that i want to hid. I am very new to all this so any help on what to do would be greatly appriciated. Thank you

What you have circled is the unit frame for LUI. The other unit frame is the one that's not supposed to be there. You have another unit frame addon (or another oUF layout) installed along with LUI.

Thank you. I have one other question. I posted another picture and circled two things that I do not know what they are.

Might be Power Auras, not entirely sure tho.

No, Seerah is spot on, that's definitely the default unitframes for LUI. If you don't want to use the included unitframes delete/rename the folder that says "unitframes" (search the folder for unitframes, I believe it's a folder under modules - not sure though).

If you want to use the default LUI unitframes disable whatever secondary ones you have enabled - which by their look is Pitbull or SUF? If you wanted to use those secondary frames for raid frames or something similar disable the player/target/ToT/etc.. frames.