[Koha] Advanced editor page keeps loading

[Michael Kuhn]

Hi

We are using Koha 18.11.03 with Debian GNU/Linux 9.

When trying to edit a bibliographic record using the advanced editor 
sometimes only part of the page appears, saying "Loading, please wait.." 
- but loading never comes to an end. See the screenshot at 
http://adminkuhn.ch/download/AdvancedEditor.JPG - Though editing the 
record in the basic editor is working.

It does not help reloading the page, or logging out and logging in 
again, also we couldn't find an obvious mistake in the bibliographic record.

Does anyone know the solution to this problem?

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 mik at adminkuhn.ch · W www.adminkuhn.ch