Greetings, This is likely a fresh install and you have not done the web installation steps. You must go to the staff client first. GPML, Mark Tompsett

Hi Mohamed Am 05.10.2014 um 13:20 schrieb Mohamed Fekry Negm:

Hi i got this error Can't use an undefined value as an ARRAY reference at /usr/lib/perl5/DBI.pm line 2064. in version 3.16 + ubuntu 14.04 in opac-user.pl any help

The error message seems to be completely harmless. In earlier versions (e. g. Koha 3.14) after the initial installation Koha the link to the OPAC showed this message: ********************** System maintenance: The Koha online catalogue is offline for system maintenance. We'll be back soon! If you have any questions, please contact the site administrator. ********************** Now with Koha 3.16 (at least with 3.16.4) the message more looks like a serious error, but it isn't: ********************** Software error: Can't use an undefined value as an ARRAY reference at /usr/lib/perl5/DBI.pm line 2064. For help, please send mail to the webmaster ([no address given]), giving this error message and the time and date of the error. ********************** Just configure Koha using the web installer - after finishing that successfully the link to the OPAC will show the OPAC, as expected Kind regards, Michael