GnuTLS: соединение TLS было неправильно завершено - ошибка после обновления до человечности 16.04

Я использую сервер человечности 16.04. Я просто обновил этим утром. Эта команда, которая является частью обновления redmine, генерирует ошибку GnuTLS. Я искал решения онлайн, но не нашел ни один. Любой совет ценился бы.

**bundle install --gemfile=/opt/redmine/redmine/Gemfile**

Fetching https://github.com/jbox-web/gitolite-rugged.git
error: RPC failed; curl 56 GnuTLS recv error (-110): The TLS connection was non-properly terminated.

Retrying `git clone 'https://github.com/jbox-web/gitolite-rugged.git' "/home/sysadmin/.gem/ruby/2.2.3/cache/bundler/git/gitolite-rugged-f96eae3bf467935eea22ec876625e07825442454" --bare --no-hardlinks --quiet` due to error (2/4): Bundler::Source::Git::GitCommandError Git error: command `git clone 'https://github.com/jbox-web/gitolite-rugged.git' "/home/sysadmin/.gem/ruby/2.2.3/cache/bundler/git/gitolite-rugged-f96eae3bf467935eea22ec876625e07825442454" --bare --no-hardlinks --quiet` in directory /home/sysadmin has failed.error: RPC failed; curl 56 GnuTLS recv error (-110): The TLS connection was non-properly terminated.

Retrying `git clone 'https://github.com/jbox-web/gitolite-rugged.git' "/home/sysadmin/.gem/ruby/2.2.3/cache/bundler/git/gitolite-rugged-f96eae3bf467935eea22ec876625e07825442454" --bare --no-hardlinks --quiet` due to error (3/4): Bundler::Source::Git::GitCommandError Git error: command `git clone 'https://github.com/jbox-web/gitolite-rugged.git' "/home/sysadmin/.gem/ruby/2.2.3/cache/bundler/git/gitolite-rugged-f96eae3bf467935eea22ec876625e07825442454" --bare --no-hardlinks --quiet` in directory /home/sysadmin has failed.error: RPC failed; curl 56 GnuTLS recv error (-110): The TLS connection was non-properly terminated.

Retrying `git clone 'https://github.com/jbox-web/gitolite-rugged.git' "/home/sysadmin/.gem/ruby/2.2.3/cache/bundler/git/gitolite-rugged-f96eae3bf467935eea22ec876625e07825442454" --bare --no-hardlinks --quiet` due to error (4/4): Bundler::Source::Git::GitCommandError Git error: command `git clone 'https://github.com/jbox-web/gitolite-rugged.git' "/home/sysadmin/.gem/ruby/2.2.3/cache/bundler/git/gitolite-rugged-f96eae3bf467935eea22ec876625e07825442454" --bare --no-hardlinks --quiet` in directory /home/sysadmin has failed.error: RPC failed; curl 56 GnuTLS recv error (-110): The TLS connection was non-properly terminated.

**Git error: command `git clone 'https://github.com/jbox-web/gitolite-rugged.git' "/home/sysadmin/.gem/ruby/2.2.3/cache/bundler/git/gitolite-rugged-f96eae3bf467935eea22ec876625e07825442454" --bare --no-hardlinks --quiet` in directory
/home/sysadmin has failed.***