ONTAP revert not possible due to storage error

cluster1::*> system node revert-to -node cluster1n1 -version 9.7
Warning: This command reverts cluster configuration ONLY. The File system on every controller in the cluster must be reverted by running "revert_to" from the
         nodeshell on every controller. Example: run local revert_to 9.7
Do you want to continue? {y|n}: y

Warning: This command reverts cluster configuration ONLY. The File system on every controller in the cluster must be reverted by running "revert_to" from the
         nodeshell on every controller. Example: run local revert_to 9.7
         Warning: Existing NFSv4.2 mounts will not be accessible after reverting from release 9.8.
Do you want to continue? {y|n}: y

Error: command failed:
       You must clean up configuration errors in order to perform revert.
        Command to describe errors: "storage errors show"