Hello Bilal,
Could not update einsteinanalysis. Could not stash local changes. Error message was 'You do not have the initial commit yet '.
In that case I would try and remove only the repository that has errors (repos/einsteinanalysis) and then run GetComponents again. This way at least it should make progress even if in your case there is always a certain fraction of the repositories that cause problems.
If you don't mind, where are you trying to download from? Your laptop or a cluster (which one, located where)?
Yours, Roland