My OnlyOffice does not have the function to restore the old version

Do you want to: Suggest a feature / Report a bug / Ask a how-to question
For feature suggestions, describe the result you would like to achieve in detail.
For bug reports, provide the steps to reproduce and if possible a minimal demo of the problem.
Document Server version:
Type of installation of the Document Server (docker, deb/rpm, exe)
Browser version:

Hello @trungpham :handshake:

he-he, it’s challenging to understand the issue with just one screenshot without basic information :upside_down_face: and detailed description of the problem.
Such as:

  1. Version of Nextcloud, version of connector.
  2. Version of Document server.
  3. How you performed installation, point me to the guide you used.