jvstratum Thanks for your reply. What worked for me was upgrading the plug-in by uploading the ZIP file. Then, using the Settings area in ACY to migrate my data. Upgrading by click Upgrade in the list list of plug-ins and migrating data from there didn't work.
However, this has left us with the Starter version of ACY, and we have an existing license for Enterprise. In the License area of Settings, I'm not seeing any field for entering our license key. Any ideas on getting our Enterprise license active would be helpful.