App Rejection Due to login password popup showing again and again.

### Platform

- [x] iOS

### In app purchase type

- [x] Consumable
- [x] Non-consumable

### Environment

- [x] Sandbox
- [ ] Production

### Version
ℹ SwiftyStoreKit (0.15.0)

### Related issues
ℹ App Rejection Due to login password popup showing again and again.

## Report

### Issue summary
ℹ When trying to process the IAP we were caught in a sign in loop. After entering the password for the Apple ID, the app would start asking for both Apple ID and password again.

### What did you expect to happen
ℹ I am expecting login password popup should show only once when trying to payment in sandbox. Before it was working fine. But suddenly it's showing pop up again and again.