When I try to change my licensed URL, I get this error message:

Quote

 

Sorry, there is a problem

There seems to still be an installation of Invision Community at the URL on file. Before you can change the URL, you must first remove the existing installation.

 

I've set up so that my old domain name re-directs to my new domain, could that be causing this?

Please remove the redirect temporarily while you perform the URL reset in our tool and then you can then re-enable the redirect.