How to delete a policy who was modified by error without affect the backups associated.

Hi Dell Avamar Experts,

I am new on avamar and here is my situation: 

The Policy "POL VM Daily WebApps" has been run for 1 month with 16 members without issue.  But 2 weeks ago  all backups showed this error:

log#1: 2023-03-21 00:11:55 avtar Error <41439>: Using invalid token:5ba93c9db0cff93f52b521d7420e43f6eda2784f
log#1: 2023-03-21 00:11:55 avtar Error <10542>: Data Domain server "ABC" open failed DDR result code: 4904, desc: Invalid API argument.
log#1: 2023-03-21 00:11:55 avtar Error <10509>: Problem logging into the DDR server:'', only GSAN communication was enabled.
log#1: 2023-03-21 00:11:55 avtar FATAL <17964>: Backup is incomplete because file "/ddr_files.xml" is missing
log#1: 2023-03-21 00:11:55 avtar FATAL <8941>: Fatal server connection problem, aborting initialization. Verify correct server address and login credentials.

The only change done was modifying the name of the Policy ...  ups!  fatal error!

I tried to leave the previous name.. but other error occurred while updating policy:

Code: 22540  

Category: application

Software source: MCS:BS

Severity: process

Summary: Invalid name character or name is too long

Error Message: Update group failed

So...this is the plan:

1. Disable the policy involved to avoid run again according to the schedule.   Result: Done 

2. Create a new Policy with a name without symbols.       Result: Done

3. Move the members whose had backup failed to a new policy and run the policy.    Result: When I tried to move a member from the old policy, shown this error:

Code: 32001

Category: application

Software source: MCS:REST

Summary: MC REST API operation failed

Error message: Parameter Group name contains invalid characters, the valid character set is
[abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789_-. ].

The questions now are:

• Since the old policy is disabled but the members are still attached to this policy, is it appropriate to run the new policy with the same members?   any suggestions?   
• Do I have to move the members to a new folder (on asset management tab) before running the new policy?

Any suggestion and/or opinion I will appreciate it.