One instance data showing in another instance

Hi AWS,

we've two different environments in AWS for our website called xafari.in one production (www.xafari.in.) and one for testing (https://web-stag.xafari.in/ ). The issue is sometimes staging data showing in live application especially for mobile apps which is live, at the same time both DB instance and server instance are different. please guide us on how to resolve this.

Thank you.