Running UPS there is an error Failed to set data for 'UPSProInstalled'

Hi, when the users are creating a new shipment from an application and shiprush is trying to open it the users are getting the folowing error "Error Message: OLE IDispatch exception code 0 from ZRush_ShipRush.ZFShippingPanel: Failed to set data for 'UPSProInstalled'.."
Please advise

Regards