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I successfully submitted and updated the application in AppStore. Here I am facing one issue while updating the app from the app store app is getting crash(after launch Screen). While the fresh installation application is working without a crash. No crash while testing and in TestFlight. No crash reports were available from the store. Here I am using firebase DB. my DB is different from previous version(fbdb_1) to present version(fbdb_2). The whole data is the same for the two DB's. Any suggestion would be helpful. Thank you.