Built in code server won't work anymore

Hello everybody,

I have installed Nextcould 19 and the built-in coder server. The server worked fine after the upgrade from 18 to 19. Since the last update to 19.0.3, when you call a document (load an existing document or create a new one) Libreoffice is loaded in the browser, but not the document. Can anyone help me further? I have no idea what it could be.

Thanks for your help,

S. Lurch