Created attachment 32886 [details]
Software error: Can't call method "as_string" on an undefined value at /usr/share/koha/lib/C4/Koha.pm line 1608. For help, please send mail to the webmaster ([no address given]), giving this error m
Just recently after upgrading the Koha from 3.06 to 3.16.03 we have been facing problems when searching the OPAC Using certain keywords like research methods. But when I search other keywords apart from the mentioned keywords, there are no problems. Has anyone faced this kind of problem and found a solutions already? Any help would be appreciated. Thanks.
the error messege says,
Software error: Can't call method "as_string" on an undefined value at /usr/share/koha/lib/C4/Koha.pm line 1608.
What happens if you search the catalog for the mentioned keywords (resarch methods) in staff client?
If you find biblios, what ISBN do they have?
It happens in search result containing records with invalid ISBN-13, ie ISBN-13 not beginning with 978.
*** This bug has been marked as a duplicate of bug 13167 ***