Sorry didn't realise.

I have sent the files to another user also so it is definitely a problem with the files rather than the installation.

the system is usually there to begin with and upon the errors it disappears.

the errors run along the lines of

Unable to load project... Exception: Value cannot be null. Parameter name: key

There are a large variety of errors that appear but they usually begin with this

Do you have any suggestions? Alternatively I could add the files?