Revit could not complete the external command. Contact the provider for assistance. ISM Revit Plugin

Hello,

I just installed Structural Synchronizer and the Revit ISM plugin to try and transfer a Revit Model to RAM SS.  However, when I click on any of the buttons provided in the Bentley Revit Tab I get the following error:

"Revit could not complete the external command.  Contact the provider for assistance.  Information they provided to Revit about their identity:Bentley Systems, Inc.."

Thanks in advance!