Unity crashes at play (may be Vuforia or Firebase)

Hello guys. I'm using Unity 2018 2.8f1 with a project passed to me by a friend through USB key. I'm able to to open the project on my computer if I load it from any external drive, but not if I load it from inside any folder contained inside the internal hard drive of my computer, as the project crashes if I try to hit play. We are using Vuforia 7.2.23 and Firebase 5.4.2, Database Analytics and Storage APIs (maybe it could have something to do with them?) EDIT: The project works if it is placed in the root folder fo my internal hard drive. Any help is welcome! Thank you very much. Filippo