That seems to be a problem of the corresponding package and not update manager.
Please append the full terminal output. Thanks, Sebastian ** Changed in: update-manager (Ubuntu) Sourcepackagename: update-manager => tzdata -- can't get updates: too many errors processing archives https://launchpad.net/bugs/80720 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
