Freaking out

Well this weekend I decided to check my grade for professor Hamons class and I'm expecting to see my regular grade an A. But when I click on gradebook my grade was a 56%. WTHHH was going on. It said that I had a zero on a project. So I emailed him so quick to try to find out what happened and come to find out my Doc.3 was not shared with him so he couldnt grade it. Thank god for smart phones because I wasnt home so I shared it with him from my phone and now I am waiting on him to read and grade it. wish me luck guys.