Webmatrix won't start my website

Whenever I go to start my website, I get the message: "The following website has stopped:"

I have seen other threads that say to try starting iisexpress.exe and that fails. I then tried iisexpress.exe /trace:error and I get:

C:\Program Files\IIS Express>iisexpress /trace:error Starting IIS Express ... Initializing the W3 Server Started CTC = 72054849 W3 Server initializing WinSock.  CTC = 72054864 W3 Server WinSock initialized.  CTC = 72054864 W3 Server ThreadPool initialized (ipm has signalled).  CTC = 72054864 Failed processing with hr = 800700c1 Error loading global modules.  hr = 800700c1 Terminating W3_SERVER object Start listenerChannel http:0 Initializing the W3 Server Started CTC = 72055894 W3 Server initializing WinSock.  CTC = 72055910 W3 Server WinSock initialized.  CTC = 72055910 W3 Server ThreadPool initialized (ipm has signalled).  CTC = 72055910 Failed processing with hr = 800700c1 Error loading global modules.  hr = 800700c1 Terminating W3_SERVER object InitComplete event signalled Process Model Shutdown called Unable to start iisexpress.

I have tried uninstalling and reinstalling IIS, Webmatrix, and the Web Platform multiple times to no avail. Can someone please help or direct me to where I can get a solution?

Thanks so much!