For Remote Monitoring, We need API Tokens setup on the cluster, and this process is mandatory.

Log in to the Proxmox Web UI: Access the Proxmox VE web interface.

Navigate to Datacenter -> Permissions -> Roles, and select Create.
Name the Role GEN, and in Privileges, use the drop-down to select all items. Then click Create.

Navigate to Datacenter -> Permissions -> Users, and Add a new user: Click the "Add" button.

Username: gensupport
Realm: Proxmox VE authentication
Password: - Select a strong password
Group: 
First Name: GEN
Last Name: Support
E-Mail: 
Expire: never
Enabled: checked
Comment: GEN HelpDesk

And click Add to add this user.

Navigate to Datacenter -> Permissions, and click "Add -> User Permission".

Path: / 
User: GENSupport@pve
Role: GEN
Propagate: Checked. 

And click Add to add this permission.

Now communicate the strong password that you selected earlier to GEN Via your account manager.