Get subscription is not working

I successfully create a subscription through this api.
POST /subscriptions
(https://docs.microsoft.com/en-us/graph/api/subscription-post-subscriptions?view=graph-rest-beta&tabs=http)

However, I got subscription through subscription ID, but there is an error.
with GET /subscriptions/{id}

Code: ExtensionError
Message: There was an error processing a storage extension.

The same error at Graph Explorer.

Getting list is fine, but get by subscription id is not working
GET /subscriptions