The Unexpected Entity is issued in the following situations:

Depending on your requirements, either add a new attribute to your entity; or un-check the Auto Number property. Learn more about entity attributes.

Depending on your requirements, either change the data type of one of these attributes or create a new entity and move one of these attributes to this new entity.

Edit this entity and specify the Table Name property. How?

See Also

Add an Entity | Entity Attributes | Warning Messages