Just out of normal posting, if you are having problems with your scoot you should always start your post with year and model and engine size of your scoot so we know what your working with.
But most bikes have 2 main kill fuse's. One near the battery/fuse panel depending on bike type and year and the second is usually under the seat on the starter motor or nearby.
I would start there, and just out of dumbness sake, have you checked your battery terminals for looseness, frayed connections, corrosion. A bad ground can have detremental affects on a bike, but dont believe would cause all those issues, however a main fuse can kill everything. I'd start fuse hunting if I were you..
Also now thinking about it....possible ignition switch. Go buy a 10 dollar DC Light tester from your nearest auto part store and start testing hot leads coming off battery terminals....if you get power all the way to the ignition switch but nothing coming out when the key turns on, then you got yourself a bad ignition switch.