Nextcloud and onlyoffice problem

ONLYOFFICE cloud: Personal
I have deployed only office and Nextcloud in docker compose and I have exposed them with nginx proxy manager container in different subdomains and although the Nextcloud plugin recognizes the OnlyOffice instance when I open a .docx file it appears a message that it can’t save the file changes. Is there something that i don’t have configured right ???

The versions of the software:

  • Nextcloud: 22.2
  • ONLYOFFICE document server:
  • ONLYOFFICE Nextcloud extension: 7.2.0

Please provide Document Server logs from /var/log/onlyoffice/documentserver/ so we could analyze the issue.