Impossible to load layout

I have created a layout on Xibo but I do not start, I get a preview of the error message and I can not figure out where I’m wrong

thank you!

Please do check to make sure that your Layout does not contain any empty Regions, as this would mark your Layout as invalid. A Layout must contain at least 1 Region and all Regions must contain at least 1 media item to be valid.

If this is not the case then please do come back to us with further information.

Thank you