customizr slider shows gey space to header and doesnt stick

Hi everybody!

I experience something really odd,.. i Run three sites- all with customizr theme. Two of them are really giving me Trouble with the slider, because the sliders dont stick to the Header/navbar. (links- http://www.Biodynamik-wien.at and http://www.sportmassage.wien . If you check out the mobile Version of biodynamik-wien.at (with the menu button) a semicolon Shows on the very top of the theme. I think this could be the Problem (code unclean?!?) I ve tried to reinstall the theme, update it and so forth- i just cant fix this,..

Any suggestions???