Repo:rebuild failed: Error connecting to process

[JuanitoFatas]

$ heroku repo:rebuild -a my app_name

Running `bash` attached to terminal... up, run.4489
set -e
mkdir -p tmp/repo_tmp/unpack
cd tmp/repo_tmp/unpack
git init --bare .
tar -zcf ../repack.tgz .
curl -o /dev/null --upload-file ../repack.tgz 'https://s3-external-1.amazonaws.com/heroku_repos/heroku.com/[redacted]'
exit
~ $ set -e
~ $ mkdir -p tmp/repo_tmp/unpack
~ $ cd tmp/repo_tmp/unpack
 !
 !    Error connecting to process

Currently did a heroku repo:reset -a my app_name + git push app_name master works for me.

What more info I can provide to help, please let me know. Thank you!