Application get's stuck once we get "You are All set" from Apple App store

I have configured the revenue cat react native SDK. The products are configured in the offerings sections and they are getting fetched properly. All good until this moment.

Once I clicked Buy now, The popup of Apple login opens up and after adding sandbox user credentials It says “purchase success-full” with “tick” sound on physical Iphone.

Once that’s done, I get new popup saying “You are all set  mode:[sandbox””. After dismissing this popup my app freezes. Nothing happens. Even I am not getting the 

`custmer_info` or `puchase_info` after the successful purchase.

Please help

 

 try {
      Purchases.setDebugLogsEnabled(true);
      console.log("initiated purchase") // this will execute
      const purchaseData = await Purchases.purchasePackage(incomingPackage);
      console.log("purchaseData", purchaseData); // not getting this line
      console.log("done puchase") // not getting this line
       }
    } catch (e) {
      console.log(JSON.stringify(e, null, 4)) // this also doesn't execute
      console.log("err", e);
    } finally {
      console.log("in finally block") // not even this executes
    }