Can't access repository

I stupidly followed this old tutorial and got to the part of:

Move the old_a repo files and folders into a subdirectory so they don’t collide with the other repo coming later

mkdir old_a
dir –exclude old_a | %{git mv $_.Name old_a}

And having issues connecting to the repository from my application, I get this error:

Error! Application was unable to connect with your server: Selected repository does not exist

Using git remote -v I see

C:\Program Files\Git\cmd>git remote -v
dinitypro (fetch)
dinitypro (push)
old_a (fetch)
old_a (push)

the _tg is the new project.

Hope someone can help. Thanks.