Hi everybody on the list, I am struggling since a few days now with an error that pops up at login time on the frontend (OPAC): Software error: Date::Calc::Add_Delta_Days(): not a valid date at /usr/share/koha/opac/cgi-bin/opac/opac-user.pl line 124. For help, please send mail to the webmaster (s.barale@erentil.net <mailto:s.barale@erentil.net>), giving this error message and the time and date of the error. Server: 213.254.14.219 (port 80 front end, port 8080 back-end) Operating System: Ubuntu 11.04 Natty Narwal Koha Installation: from packages Koha-common version: 3.7-1~git+20120213132530.685e073e The error is NOT there on Operating System: Ubuntu 10.10 Maverick Meerkat Koha installation: from packages Koha-common version: 3.9-1~git+20120524174206.f9352e89 I tried to find out a solution with google, but today I am unlucky (very very few resources on Koha out there). Any hint will come as a blessing! Best, Stefano * * * * * Stefano Barale*/Owner//, Erentil.net/ Tel: +39 3495657814| Mobile: same s.barale@erentil.net Twitter <http://www.twitter.com/KM4Learn> LinkedIn <http://www.linkedin.com/in/stefanobarale> Twitter <http://twitter.com/KM4Learn> Latest tweet: I liked a @YouTube video http://t.co/rOriifwU Depoimento de Gilberto Gil para #Manuela65 Follow @KM4Learn <http://twitter.com/KM4Learn>Reply <http://twitter.com/?status=@KM4Learn%20&in_reply_to_status_id=244313703061786620&in_reply_to=KM4Learn>Retweet <http://twitter.com/?status=RT%20%40KM4Learn%3A%20I%20liked%20a%20%40YouTube%20video%20http%3A%2F%2Ft.co%2FrOriifwU%20Depoimento%20de%20Gilberto%20Gil%20para%20%23Manuela65> 07:58 Sep-08 <http://twitter.com/KM4Learn/statuses/244313703061786624> Get a signature like this. <http://r1.wisestamp.com/r/landing?promo=20&dest=http%3A%2F%2Fwww.wisestamp.com%2Femail-install%3Futm_source%3Dextension%26utm_medium%3Demail%26utm_campaign%3Dpromo_20> CLICK HERE. <http://r1.wisestamp.com/r/landing?promo=20&dest=http%3A%2F%2Fwww.wisestamp.com%2Femail-install%3Futm_source%3Dextension%26utm_medium%3Demail%26utm_campaign%3Dpromo_20>