Are you getting a Cydia error these days, saying “http://apt.bigboss.us.com HTTP/L0 403 Cydia Store authentication error. Contact firstname.lastname@example.org for help or try again shortly.” Well you are not the only one, it is caused by the BigBoss Beta Repo.
You can simply fix it by uninstalling this repo. How To do this after the break.
If you can’t uninstall the BigBoss Beta Repo via Cydia you need to SSH into your iPhone and go to /etc/apt/sources.list.d/. Now copy the file Cydia.list to your desktop.
Now open the file and find the repo that’s causing the error to delete it, “The address begins with “deb” and ends with “./“”. (You can delete all repos that causes errors in this file).
Save it and replace the edited Cydia.list with the one on your iDevice.