Op 18-05-13 23:39, Mustafa Abbas Abdelwahid schreef: > Can't use an undefined value as an ARRAY reference at /usr/share/koha/lib/C4/Auth_with_ldap.pm line 181, <DATA> line 522. What is on the lines around 181 in Auth_with_ldap.pm? It's likely a bug to do with extended patron attributes. Try turning that off and seeing if it helps. Robin.