Please paste in the exact log entry you're talking about. Also, check your settings by selecting "Start Local Server..." from the Indigo menu and make sure that all the remote access items are turned on.
The file permissions are probably not correct for some of the Prism key files because of the file move. Follow the steps on this post to make sure the file permissions are correct, then restart your Mac.
Please copy/paste the results from the Terminal commands.
And is the Indigo Server stopped on the other Mac? You cannot use the same GoPrism.com reflector on more than 1 Mac. You'll have to create another reflector if you need Indigo running on both Macs.