This has been fixed
While using the VSS backup option to back up complex applications, you may encounter issues with creating volume snapshot/shadow copy. This article provides instructions on how to troubleshoot and resolve such issues.
Mobility Support & Maintenance Guide
Acronis Mobility (formerly GroupLogic) is a division of Acronis International. We are tied into the support resources of Acronis, but currently support resources are available through https://support.acronis.com/mobility/
Where to download user guides and other documentation on Acronis products in different languages