Editing online of Word or Excel documents

[Wuschy]

I had the exactly same issue, described also here:

Nextcloud Office is not configured

Hi, I have the same issue: today morning, Nextcloud notified me, that my long running system has lost connectivity to OnlyOffice. Tested OnlyOffice, which runs just fine. Disabled & removed the App from Nextcloud, reinstalled, Configuration is possible, System is recognized, but when trying to open a document, the message “Document loading failed. Nextcloud Office is not configured” any ideas?