Error saving item

When I link Omeka item to Neatline record, which only appears on Simile timeline and not on the map itself, I get an error stating "there was an error - the record was not saved". How do I resolve that issue? The moment I drop a random point on the map for that record everything is fine but I don't want that record showing on the map just on the timeline.
Thank you!

No one?

Can someone help me with this? I am not sure what to do. Thank you

In case someone else finds this, the discussion has moved to the Neatline issue tracker, #347.

Thank you very much. The solution davidmcclure has provided is working very well.

Ben, where do you see the solution?