“1. I have menus in my footer on my site and today all of sudden they have disappeared from my site although there are still there in the footer section”
It’s showing up when I take a look. Did you want them to appear in the bottom footer? Or did you want a custom menu widget to show up in the footer widgets above the bottom footer?
“2. I delete parts/ sentences from my site and then a day later they re-appear?”
Maybe it wasn’t saved properly? It’s not really possible for your site to make random changes without something being changed from somewhere. My guess is that the page wasn’t saved, or your browser cache needed to be cleared. Not sure, but I’ve never heard of that happening.
Maybe your site is haunted? 馃槈 …Kidding, but we should be able to figure out what’s going on.