Problems to create documents after config all well

Hi everyone!

I installed owncloud 10 and I installed collabora office on another server.

I installed app collabora office in marketplace of owncloud.

Then when I follow with configuration, I visited my personal area like administrator of owncloud

I see section of aditional when I need to add info about collabora server.

I fill this gap with the url of my server collabora and it says, saved.

I use http://my-ip, I don't use https

I check if I can create documents of suite libreoffice online in owcloud section but it doesn't work.

What do you think is it the problem?

Is there any .log to review it?w

Could anyone help me?