WCF + Website. File is being used by another process

I'm getting this error: Could not load file or assembly 'EntityFramework' or one of its dependencies. The process cannot access the file because it is being used by another process. (Exception from HRESULT: 0x80070020) (C:\Windows\Microsoft.NET\Framework\v4.0.30319\Config\web.config line 111)

The problem is that this works locally, but when I publish it at www.medicallperu.com/services/Medicall.svc/Login it gives me that error. I've no way to restart the server or anything, I just know that it works on my local server.

I'm running a WCF on the same domain that a website, I saw somewhere that this might cause an issue, like the one I'm experimenting.

I solved this by creating a Virtual Dir for my WCF instead of just having it on a subfolder of my web application.