An administrator ha having difficulty enabling Data Lens for a file server.

The most likely cause of this issue is that the file server has been cloned. Cloning a file server is not a supported operation and can cause various problems, such as Data Lens not being able to enable or disable for the cloned file server. To avoid this issue, the administrator should use the scale-out feature to add more FSVMs to an existing file server, or create a new file server from scratch. References: Nutanix Files Administration Guide, page 28; Nutanix Files Troubleshooting Guide, page 11