i have installed nextcloud self hosted .
onlyoffice and community server are installed and enabled on same server using apps in the interface and everything is working properly (creating word document , editing…)
but the problem is that the versions of files , when we choose to open one version for document already created , it will take long time and we will get unknown error at the end
Nextcloud version 19.03 .
Operating system and version ubuntu 20.04.1 LTS