Some nextgen problems to solve

Hi,
 I am pretty new to wordpress and just started to create my photography website using Photocrati theme together with Nextgen gallery plugin.
But there are still some small bugs which I wanted to eliminate. First of all, here is my site: http://www.lineup-shots.com
And here the problems:
1. Three of the galleries (the ones with the most pix: “lineup-shots”, “scenery”, “point&shoot”) don’t display at all the thumbnail carousel on the bottom of the lightbox (like all the others do as they should).
2. If I view the the lightbox on tablet, the thumbnail carousel doesn’t show up/opens automatically (as it should and I have enabled in the settings). There instead is a small arrow on the bottom which indicates that there is something hidden to open – the carousel.
3. In lightbox view, there is a small “i” and play button which I want to get rid of in the bottom.
4. In horizontal view on mobile devices like tablets the dropdown menu collapses pretty quick and doesn’t stay open as long as you click on a gallery (like it does in vertical view on mobile devices).
5. If I click on a gallery image to open the lightbox, the first picture opens (most of the time) not centered in the middle, it shows up on the top left side and only the second picture alignes correctly centered! I guess, that’s not normal?

I already contacted the support from photocrati, and they offered me the possibility to check my site internally by providing them with all my logins, but I prefer first to check on my own with the help of this forum 🙂
Would be cool, if somebody has an idea how to solve my problems – thank you
Paipel

The page I need help with: [log in to see the link]