floating footer & homepage image not visible

Footer is floating in the middle of page, can’t seem to be able to figure out how to push it back down. Slider also no working in the home page…I’ve followed these instructions (https://www.templatesnext.org/icreate/?page_id=806), and it still doesn’t work. Ideally, I would like to have one static photo (full width) for the front page (like the slider but without rotating), and then have the slider in the blog section. Help!! So beyond my depth!! LOL! But I really really like these theme, so I don’t want to have to change it unless I really really need to. Thank you in advance!!