Hello @Corinari
Please point to the guide which you used for installation. Also provide us with whole Document server logs folder. It’s located here:
docker: /app/onlyoffice/DocumentServer/logs/documentserver/
deb\rpm: /var/log/onlyoffice/documentserver/
Windows: Program Files\ONLYOFFICE\DocumentServer\log
Recently one of the forum users faced an issue which is related to Nginx error. Please check this thread: Nginx exit with error code
If you have the same error entries in Nginx logs, the solution is provided there.