I have owncloud version 9.1.8 running on a synology. Now I installed onlyoffice on a local server with a self signed certificat. It is important to know, that the onlyoffice server is running locally in a network. So I cannot access the server like e.g. with lets encrypt, because I only have a local server name and not a public server name. Lets Encrypt therefore cannot verify the server. However if I want (and if you have a solution doing that), I can access the internet using the server. Now i have the problem, that owncloud delivers me the following error message
"Error while downloading the document file to be converted."
when I want to save the url in the onlyoffice configuration in owncloud. I guess the problem is, that I am using a self signed certificat. Do you know what I can do? Google does not really help me.