gwibber-accounts crashed with ValueError in__init__(): cannot convert float NaN to integer

i was able to add twitter account...then gwibber retrieved the tweets and than the error message "gwibber-accounts crashed with ValueError in__init__(): cannot convert float NaN to integer" appeared

after a while i got another error message: gwibber-service crashed with RangeError in refresh(): second out of range(0.0-<60.0; <61.0 for 23:59):-2147483648

Description: Ubuntu 12.04.1 LTS
Release: 12.04

gwibber:
  Installato: 3.4.2-0ubuntu2.1
  Candidato: 3.4.2-0ubuntu2.1
  Tabella versione:
 *** 3.4.2-0ubuntu2.1 0
        500 http://it.archive.ubuntu.com/ubuntu/ precise-updates/main i386 Packages
        100 /var/lib/dpkg/status
     3.4.0-0ubuntu4 0
        500 http://it.archive.ubuntu.com/ubuntu/ precise/main i386 Packages

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: gwibber 3.4.2-0ubuntu2.1
ProcVersionSignature: Ubuntu 3.2.0-34.53-generic 3.2.33
Uname: Linux 3.2.0-34-generic i686
NonfreeKernelModules: nvidia
ApportVersion: 2.0.1-0ubuntu15
Architecture: i386
Date: Sat Dec 15 14:00:55 2012
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release i386 (20111012)
MarkForUpload: True
ProcEnviron:
 LANGUAGE=it:en
 PATH=(custom, no user)
 LANG=it_IT.UTF-8
 SHELL=/bin/bash
SourcePackage: gwibber
UpgradeStatus: Upgraded to precise on 2012-05-10 (219 days ago)