Having issues with n8n

I’m using the cloud hosted version of postiz and trying to connect to n8n. I copy the API key and connection is successful. Next, I’m tryiing to read off an RSS feed and then schedule content in Postiz. The RSS reed is fine and pulls all the data but when I am trying to send it to postiz, it is resulting in an error: Bad request - please check your parameters

Not sure how I can troubleshoot this.

Take a look at the following thread, maybe the suggestion in the last post could be helpful

Thanks but the URL is already set to https://api.postiz.com/