Geometry Error on Attributes

In preparation for an upgrade from v15.6 to v., we set up a blank ALIM database, exported data from v15.6, and imported it into v16.7.43.6 using the ALIM Import/Export utility.  There were some minor tweaks to be made, but I was able to push in almost all of our information.  However, I am getting an error when I try to open any object (see below).  It seems to have something to do with the Attributes, but I am not able to open the Attributes on any object without getting the same error.  I checked the Attributes for all Object Types, and none of the Attribute types are set to Geometry.  Has anyone experienced a similar situation?  If so, how did you correct it?

The error:

"Unknown DataType: '' for Column 'GeometryValue.ContentData'."

Correlation code: c28c79bb-62c4-446c-aec8-bb438b985fdb