Slider issues with plugins

I am using the Rambo theme for three sites as they are all connected and part of my branding. I love the format of the theme, but I have been having issues with the slider function, which is important to me, after adding plugins. Different plugins for different sites. The sites I am running Rambo on are http://www.doinggood.rocks, http://www.doinggood.foundation and http://www.youngpros.doinggood.rocks. The Doinggood.foundation has just a picture on it and honestly, I am not sure where that is pulling from as the slider left and now it’s just that logo. The YoungPros.DoingGood.RoCKS slider was there earlier before uploading PaidMembershipsPro as a plugin. Now the slider is gone.

There is a bigger issue as the instructions on how to make your website look like the demo has some steps which are not a part of my customize section, that being the “Frontpage” tab in the customize area. I do not have that in the YoungPros.DoingGood.ROCKS site at all. Please help! I purchased the Rambo-Pro but that isnt’ working either with the slider. I need help to get all three of these sites working the way I need them.