Hi everybody I have installed koha 16.11.04 from 0, complete new on a new server. and the problem, trying to add a new PATRON CARD was corrected. But on production server: I removed koha. I installed everything from 0, and... the same error: patroncards/manage.pl? card_element=profile&error= <http://manage.pl/?card_element=profile&error=> 201 exactly what this means? I have done everything you told me. If it is a field which is emply: Which one? What is the name of the table where the information of the patron card data is saved? *There is not logic* -- *Luis Moisés Rojas P.* <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail> Libre de virus. www.avast.com <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail> <#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2>