Hello,
Problem was caused by the updated version of XStore core plugin that is required for the 5.0 version of XStore theme. I have downgraded core plugin, updated Revolution slider, Infinite scroll and Massive addons plugins. I don’t know what widgets you had in widget areas and I suppose they are messed up now, so, please, go to Appearance > Widgets and move them into correct areas.
Tell me what problems did you have with the Revolution slider?
Also, if you create staging site we can help you to update theme to version 5.0 there and then you’ll be able to fix some moments with styles if you want.
Regards