Refreshing Journyx reporting feeds in Excel results in the following error message:

Error Code: 457

Error Message: This key is already associated with an element of this collection

This error is encountered on all versions of Journyx Reportlink before and including 8.7.56.  The solution to the error is to upgrade Journyx Reportlink to at least version 12.0.1.  You can download the installer from Analyze -> Exports -> Reportlink Exchange.