When I first put up my website, it looked fine. But now, when I try to see it, it says that it's forbidden? Can someone help me?

because you named your page either somethingsilly.html or home.html and it is trying to find your page as index.html since that is what your home page has to be

if you have it as index.htm then delete the index.html file and your page will come up

if you named your page somethingsilly.html or INDEX.html rename it to as said index.html