Problem with file reading on OnlyOffice

Good evening everyone,
I come by this present message, to ask for your help.
I install nextcloud and integrate onlyoffice into it, but the problem is that I can’t open a document on onlyoffice.

I need your help
thank you

Can you give more information over your installation ?
Debian, Apache/Nginx ? How did you install onlyoffice (docker, built in server) ?
I notice that you are not using a domain but ip adress. So, you don’t have a secure installation with ssl and it may cause problem with onlyoffice