Crash after resume

[sonbui00]

• [x] I have updated Purchases SDK to the latest version
• [x] I have read the Contribution Guidelines
• [x] I have searched the Community
• [x] I have read docs.revenuecat.com
• [x] I have searched for existing Github issues

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There are a lot of things that can contribute to things not working. Having a very basic understanding of your environment will help us understand your issue faster!

Environment

• [ ] Output of flutter doctor
• [ ] Version of purchases-flutter
• [ ] Testing device version e.g.: iOS 15.5, Android API 30, etc.
• [ ] How often the issue occurs- every one of your customers is impacted? Only in dev?
• [ ] Debug logs that reproduce the issue
• [ ] Steps to reproduce, with a description of expected vs. actual behavior Other information (e.g. stacktraces, related issues, suggestions how to fix, links for us to have context, eg. stackoverflow, etc.)

Describe the bug

I've just use Paywall feature and got many crash report message like this There is no singleton instance. Make sure you configure Purchases before trying to get the default instance. More info here: https://errors.rev.cat/configuring-sdk

I think the issue happen when the user open paywall and leave the app. And when they comeback, the activity resume and have this issue.

To reproduce the issue you can enable "Don't keep activities" on Developer options. And then ope paywall in the app, leave paywall open and change to other app. When comeback you can see the issue or you can't close the paywall.

Additional context

Add any other context about the problem here.

[RCGitBot]

👀 We've just linked this issue to our internal tracker and notified the team. Thank you for reporting, we're checking this out!

[michaelAtRC]

Hey @sonbui00 ,

Can you please confirm that you have configured the SDK before showing the Paywall in this instance? You might be able to confirm that from debug logs or stack trace of the crash report that you get. Once you get that information, can you please share it here so we can look further into it?

[sonbui00]

@michaelAtRC Confirmed. I can open Paywal and make purchase normally. The issue happen when I leave the Paywall open and change to other app in long time and come back, not when I open paywall first time.