Hello Michael, We had this error, but in version 20.05. The same thing you describe. It was a problem in translation, in our case Brazilian Portuguese (Pt-BR). Do you use other language in your Koha? If so try the untraslate interface (i.e. English).
*Ingrid Schiessl* Librarian - Research Assistant Brazilian Institute of Information in Science and Technology Brasília - DF - Brazil Em qua, 8 de jul de 2020 05:37, Michael Kuhn <[email protected]> escreveu: > Hi > > We are working with Koha 18.11.05 on Debian GNU/Linux 8. > > In our library we try to add a new patron in Koha menu "Patrons" by > clicking the button "+ New patron" - but absolutely nothing happens: No > error message on the screen, no log entry anywhere in > "/var/log/koha/INSTANCE" or "/var/log/mysql", nothing in the Mozilla > Firefox Inspektor Console. According to the library this happens since > some update in the past. What could be the reason for this behaviour? > > By the way, adding a new patron by clicking Koha menu "Patrons > Quick > add new patron" works as expected. > > Best wishes: Michael > -- > Geschäftsführer · Diplombibliothekar BBS, Informatiker eidg. Fachausweis > Admin Kuhn GmbH · Pappelstrasse 20 · 4123 Allschwil · Schweiz > T 0041 (0)61 261 55 61 · E [email protected] · W www.adminkuhn.ch > _______________________________________________ > > Koha mailing list http://koha-community.org > [email protected] > Unsubscribe: https://lists.katipo.co.nz/mailman/listinfo/koha > _______________________________________________ Koha mailing list http://koha-community.org [email protected] Unsubscribe: https://lists.katipo.co.nz/mailman/listinfo/koha

