I have a small problem with my OnlyOffice installation.
After runing my ansible playbook https://github.com/ReinerNippes/nextcloud13/tree/devel OnlyOffice is working just fine.
If I go to the OnlyOffice settings page to add txt or csv files and save the changes I get an timeout error at the top of page. And after that the OnlyOffice app is permanent disabled.
In the logs I find error messages saying that Nextcloud can’t verify the certificate.
If I go to https://my-domain:8443/ I’m still getting a correct “Welcome” page with a valit letsencrypt certificate.