I was messing around in the Settings on the General page. I changed the url of my website, not sure if I changed the first one or the second one. I can even access any of the functions of wordpress. When I click on anything, it gives me the Error 404: Not Found message. The only thing that functions is my home page but the formatting is gone. My theme is not showing up. What do I do? I am going to cry if all the hours and hours of formatting I have done are gone!!! Please help!