Clustered Storage Spaces and Exchange DAG Without a Cluster Administrative Access Point

Hi I have a two questions about that error that I'm getting in Storage poll interface.

I have exchange DAG cluster without a Cluster Administrative Access Point configured and when I open storage poll I receive warning "Incomplete communication with cluster <cluster name>. The following cluster nodes or clustered roles might be offline or have connectivity issues: <cluster name>" What's the reason of that and can it be fixed?

I also wanted to create local storage pool with two local disk on that server that will not be use for exchange cluster but when I try to do that I'm getting info thatSelecting these drives will create local pool and next button is gray out. I think it's like that because on list of primordial pool I see only "Clustered Storage Spaces on <cluster name>" and not "Storage Spaces on <server name>". But when I do:

Get-StorageSubSystem

FriendlyName                        HealthStatus   OperationalStatus
------------                        -----------    -----------------
Storage Spaces on EXx               Healthy        OK
Clustered Storage Spaces on DAGx    Healthy        OK

Is it possible to create a local storage space when server is a node of storage cluster?