Hello @bilboox
To start off please execute a certain script from your machine where Document Server is installed:
For Windows execute documentserver-update-securelink.bat script that is located in C:\Program Files\ONLYOFFICE\DocumentServer\bin
For Linux execute command bash documentserver-update-securelink.sh
In case it didn’t solve the problem please share next information:
- version of Document Server;
- server OS type where Document Server is installed;
- version of Nextcloud;
- version of connector app;
- log files of Document Server located in /var/log/onlyoffice/documentserver/ for Linux or C:\Program Files\ONLYOFFICE\DocumentServer\Log for Windows.
Waiting for your feedback.