Integration Nextcloud 16.0.1 and Onlyoffice 5.3.0 not working

[MarioStuck]

Hi, after update to Documentserver 5.3 the integration wont work anymore. To get it work again I've setup a clean docker image with own ip and port with the latest document server and setup a proxy on the nc apache server. Everything works fine on the first look.

Calliung the document server gives "Document server is running", the healthcheck gives "true". Saving the config for integration in nc the settings are save successful. The opening a document from nc in document server the app will open, loads the document an gives tho following error:

Any ideas?

[CarlOnlyoffice]

Hello @MarioStuck,
Sorry for the delayed reply. Please install the latest versions of Document Server and ONLYOFFICE connector app and check if the issue is still relevant.