Moving git

Hi Git forum,

I've just started using git yesterday, so I'm very new. So please excuse if I've done something the wrong way.

I cloned a git directory/repository? and then moved it. I'm trying to prune branches and it gives

]fatal: '/var/www/vhosts/mydomain.co.uk/b2.git': unable to chdir or not a git archive fatal: The remote end hung up unexpectedly ls-remote --heads /var/www/vhosts/mydomain.co.uk/b2.git: command returned error: 1

b2.git was the cloned bare thing I create following the instruction here:

http://book.git-scm.com/4_setting_up_a_private_repository.html

Is there someway I can get git to update the git base directory?

Richard