Moved workspace to dropbox, to a new computer and cannot use git any more

Moved workspace to dropbox, to a new computer and cannot use git any more

Had to move from an old mac to a new mac, figured putting the whole
workspace folder on dropbox would do the trick (took almost 2 full days
for the whole folder to sync thou)
After the sync was done, I realised I don't really need the workspace
folder to be on dropbox any more since I only work with the projects from
one machine, so I renamed the folder to be workspace-old, copied it to the
same location where workspace(-new) and added it in eclipse.
Now. I cannot use git with my projects from workspace-old. I can do
NOTHING. Terminal keeps throwing errors.
One of them is
error: Could not resolve host: (nil); nodename nor servname provided, or
not known while accessing
https://github.com/YYYYY/XXXXXXXXX.git/info/refs?service=git-upload-pack
I tried deleting and re-adding remote repos, but nothing seems to work.
Please help!