Onlyoffice: Error while downloading the document file to be converted

Hello,
I’m trying to connect Owncloud to my Onlyoffice Docs, but i get: Error while downloading the document file to be converted.) (version 7.1.1.23) everytime I try to Save.

I have Owncloud and Onlyoffice Docs on the Same Ubuntu Server and Onlyoffice Docs is running in Docker on Port 8080.

So far, I have edited the local.json and default.json file in ways i have Read on other Trouleshooting Posts and the Integration Guide on Onlyoffice.

I have Downloadet the Connection App vie the integrated Owncloud Market.

curl http://:8080/healtcheck returns true

Here is my Current Configuration in Owncloud
Screenshot 2022-07-13 153937

I use Apache2 and MySQL as Webserver and Database

Any Recommendations would be great.
Sorry for the bad English

You can try adding this to your config.php

‘onlyoffice’ => array (‘verify_peer_off’ => true,),

Thanks for the advice, but I still got the Error