Unable to define the sites for an App Registration for SahrePoint with Site.Selected

I have this App registration with Site.Selected:-

now i want to define the sites for the above "Sites.Selected", so i tried the following:-

$siteUrl = "https://*.sharepoint.com/sites/integration-prod"

$clientId = "2**0a"

$certThumbprint = "7**EA"

$tenant = "**.onmicrosoft.com"

Connect-PnPOnline -Url $siteUrl -ClientId $clientId -Thumbprint $certThumbprint -Tenant $tenant

$writeperm = Grant-PnPAzureADAppSitePermission -Permissions "Write" -Site $siteUrl -AppId $clientId -DisplayName "SPGPIntegration-Test"

$PermissionId = Get-PnPAzureADAppSitePermission -AppIdentity $clientId

Set-PnPAzureADAppSitePermission -Site $siteurl -PermissionId $(($PermissionId).Id) -Permissions "FullControl"

but i got these errors:-

PS C:\Users\mohan> $writeperm = Grant-PnPAzureADAppSitePermission -Permissions "Write" -Site $siteUrl -AppId $clientId -DisplayName "SPGPIntegration-Test"

Grant-PnPAzureADAppSitePermission: {"error":{"code":"AccessDenied","message":"Either scp or roles claim need to be present in the token.","innerError":{"date":"2024-09-17T14:01:55","request-id":"38072694-80cf-4235-9b4c-3d0335ee72ff","client-request-id":"38072694-80cf-4235-9b4c-3d0335ee72ff"}}}

PS C:\Users\mohan>

PS C:\Users\mohan> $PermissionId = Get-PnPAzureADAppSitePermission -AppIdentity $clientId

Get-PnPAzureADAppSitePermission: Forbidden (403): Either scp or roles claim need to be present in the token.

PS C:\Users\mohan>

PS C:\Users\mohan> Set-PnPAzureADAppSitePermission -Site $siteurl -PermissionId $(($PermissionId).Id) -Permissions "FullControl"

Set-PnPAzureADAppSitePermission: Cannot validate argument on parameter 'PermissionId'. The argument is null or empty. Provide an argument that is not null or empty, and then try the command again.

any advice on this please?

Thanks