Premium user entitlements.active list is empty

I the app developer and i purchased the premium version of my app in production. ideally i should be getting something in entitlement active object: [Kotlin code] 

customerInfo.entitlements.active.isNotEmpty() 

The above code should return true, but only in case of my account its returning as false. and when trying to call the restore method:

Purchases.sharedInstance.restorePurchases(object : ReceiveCustomerInfoCallback{        override fun onError(error: PurchasesError) {            showToast(this@AccountManagerActivity,error.message)        }        override fun onReceived(customerInfo: CustomerInfo) {            val value = customerInfo.activeSubscriptions.toString()            showToast(this@AccountManagerActivity,value)        }    })}

Its throwing some server error.

Please help as currently its reported in my account and could happen with a premium user as well. Thanks in advance.