The remote end hung up unexpectedly

I'm trying to clone a repo. Have had the same problem with other repo today, but the other one finally made it through.

I have found other answers suggesting that there is no generally applicable solution and that I need to create a new ticket.

I have done the following about 10 times. It reaches about 50%, then hangs up.

Thanks in advance.

git clone git@bitbucket.org:emmio/edumatcher.git app

Cloning into 'app'...
remote: Counting objects: 130, done.
remote: Compressing objects: 100% (121/121), done.
Connection to bitbucket.org closed by remote host.KiB/s
fatal: The remote end hung up unexpectedly
fatal: early EOF
fatal: index-pack failed