Dynamic volume support for file level restores is limited to simple-dynamic volumes for agentless protected servers (via vcenter/esxi).
Please refer to user guide for your version of Rapid Recovery.
You can still use recovery points for this server in volume level, virtual exports, and bare metal recovery scenarios. If you proceed with the below steps, you may want to keep these recovery points.
To be able to use file-level restores in the future, under the conditions stated above, you have two options: