CredentialsError, stuck on "Getting Information, Please wait"

I've been unable to sync my files with ubuntu one in the last month and a half

It seems the problem is the same as this old bug, that has supposedly been fixed: https://bugs.launchpad.net/ubuntu/+source/ubuntu-sso-client/+bug/986117

inside the log in fact I found these lines:

2014-01-05 17:19:25,802:802.46591568 - ubuntu_sso.main - INFO - CredentialsManagement: emitting CredentialsFound with app_name dbus.String(u'Ubuntu One').
2014-01-05 17:19:25,834:834.37204361 - ubuntu_sso.utils.webclient.qtnetwork - INFO - Proxy is disabled.
2014-01-05 17:19:27,266:266.325950623 - ubuntu_sso.main - INFO - 'CredentialsManagement': emitting 'CredentialsCleared' with args (dbus.String(u'Ubuntu One'),) and kwargs {}
2014-01-05 17:19:27,269:269.14191246 - ubuntu_sso.credentials - ERROR - find_credentials (app_name: Ubuntu One): Problem while getting credentials from the keyring.
Traceback (most recent call last):
  File "/usr/lib/python2.7/dist-packages/ubuntu-sso-client/ubuntu_sso/credentials.py", line 104, in inner
    result = yield f(self, *a, **kw)
DBusException: org.freedesktop.Secret.Error.NoSuchObject: The '/org/freedesktop/secrets/collection/login/1833' object does not exist
2014-01-05 17:19:27,271:271.615028381 - ubuntu_sso.main - ERROR - 'CredentialsManagement': emitting 'CredentialsError' with args (dbus.String(u'Ubuntu One'), DBusException(dbus.String(u"The '/org/freedesktop/secrets/collection/login/1833' object does not exist"),)) and kwargs {}
2014-01-05 17:19:27,528:528.160095215 - ubuntu_sso.credentials - INFO - _login_or_register: login_only=True email=None.
2014-01-05 17:19:27,541:541.541099548 - ubuntu_sso.credentials - INFO - find_credentials: self.app_name dbus.String(u'Ubuntu One'), result is {}? False
2014-01-05 17:19:27,542:542.634963989 - ubuntu_sso.main - INFO - CredentialsManagement: emitting CredentialsFound with app_name dbus.String(u'Ubuntu One').
2014-01-05 17:19:35,809:809.231042862 - ubuntu_sso.main - INFO - Shutting down, calling <function shutdown_func at 0x13399b0>.

I tried to reproduce the output of these log lines by killing the syncdaemon and restarting it, but I only got this output once

Still, I think this is related to the actual error, since the stuck ubuntuone-control-panel-qt displays the AUTH_FAILED error underneath

ProblemType: Bug
DistroRelease: Ubuntu 13.10
Package: ubuntu-sso-client 13.10-0ubuntu1.1
ProcVersionSignature: Ubuntu 3.11.0-14.21-generic 3.11.7
Uname: Linux 3.11.0-14-generic x86_64
NonfreeKernelModules: wl
ApportVersion: 2.12.5-0ubuntu2.1
Architecture: amd64
Date: Sun Jan 5 17:26:43 2014
InstallationDate: Installed on 2011-10-31 (797 days ago)
InstallationMedia: Kubuntu 11.10 "Oneiric Ocelot" - Release amd64+mac (20111012)
MarkForUpload: True
PackageArchitecture: all
SourcePackage: ubuntu-sso-client
UpgradeStatus: Upgraded to saucy on 2013-10-09 (87 days ago)