Reltio Connect

While working with Reltio Training Tenant, I am Unable to publish the changes that i made in the UI Modeler, While clicking on the publish button it is showing an error, I have Attached the screenshot of it.

your screen shot is cut off on the right, but if you scroll down there, is there an error?

If not, it may be that there is an error on a different object.  My memory may be off, but I believe I took this course recently.  The error is on a different page.  Fix the other page and you should be able to save this.