Link crash

Build version: 1.7.7
Build date: 1981-01-01 01:01:02
Current date: 2021-12-17 15:33:23
Device: Vsmart Live
OS version: Android 10 (SDK 29)

Stack trace:
java.lang.NullPointerException: Attempt to invoke virtual method 'void android.app.Activity.startIntentSenderForResult(android.content.IntentSender, int, android.content.Intent, int, int, int, android.os.Bundle)' on a null object reference
    at com.google.android.play.core.appupdate.d.startIntentSenderForResult(Unknown Source:9)
    at com.google.android.play.core.appupdate.e.startUpdateFlowForResult(Unknown Source:23)
    at com.google.android.play.core.appupdate.e.startUpdateFlowForResult(Unknown Source:9)
    at com.sanojpunchihewa.updatemanager.UpdateManager.startUpdate(UpdateManager.java:95)
    at com.sanojpunchihewa.updatemanager.UpdateManager.access$100(UpdateManager.java:26)
    at com.sanojpunchihewa.updatemanager.UpdateManager$1.onSuccess(UpdateManager.java:84)
    at com.sanojpunchihewa.updatemanager.UpdateManager$1.onSuccess(UpdateManager.java:77)
    at com.google.android.play.core.tasks.e.run(Unknown Source:27)
    at android.os.Handler.handleCallback(Handler.java:883)
    at android.os.Handler.dispatchMessage(Handler.java:100)
    at android.os.Looper.loop(Looper.java:214)
    at android.app.ActivityThread.main(ActivityThread.java:7458)
    at java.lang.reflect.Method.invoke(Native Method)
    at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:492)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:935)

User actions:
2021-12-17 13:46:37: SplashScreen created
2021-12-17 13:46:37: SplashScreen resumed
2021-12-17 13:46:38: SplashScreen paused
2021-12-17 13:46:38: HomeScreen created
2021-12-17 13:46:38: HomeScreen resumed
2021-12-17 13:46:39: SplashScreen destroyed
2021-12-17 13:46:39: HomeScreen paused
2021-12-17 13:46:51: HomeScreen resumed
2021-12-17 13:47:03: HomeScreen paused
2021-12-17 13:47:03: ChatScreen created
2021-12-17 13:47:03: ChatScreen resumed
2021-12-17 13:48:09: ChatScreen paused
2021-12-17 13:48:09: HomeScreen resumed
2021-12-17 13:48:10: ChatScreen destroyed
2021-12-17 13:48:10: HomeScreen paused
2021-12-17 13:48:11: HomeScreen destroyed
2021-12-17 15:03:32: SplashScreen created
2021-12-17 15:03:32: SplashScreen resumed
2021-12-17 15:03:34: SplashScreen paused
2021-12-17 15:03:34: HomeScreen created
2021-12-17 15:03:34: HomeScreen resumed
2021-12-17 15:03:34: SplashScreen destroyed
2021-12-17 15:03:35: HomeScreen paused
2021-12-17 15:03:35: ChatScreen created
2021-12-17 15:03:35: ChatScreen resumed
2021-12-17 15:04:06: ChatScreen paused
2021-12-17 15:04:06: WebViewScreen created
2021-12-17 15:04:06: WebViewScreen resumed
2021-12-17 15:04:06: WebViewScreen paused
2021-12-17 15:32:57: WebViewScreen resumed
2021-12-17 15:33:08: WebViewScreen paused
2021-12-17 15:33:08: ChatScreen resumed
2021-12-17 15:33:09: WebViewScreen destroyed
2021-12-17 15:33:10: ChatScreen paused
2021-12-17 15:33:10: LoginScreen created
2021-12-17 15:33:10: LoginScreen resumed
2021-12-17 15:33:11: ChatScreen destroyed
2021-12-17 15:33:12: LoginScreen paused
2021-12-17 15:33:12: AuthorizationManagementActivity created
2021-12-17 15:33:12: AuthorizationManagementActivity resumed
2021-12-17 15:33:12: AuthorizationManagementActivity paused
2021-12-17 15:33:19: RedirectUriReceiverActivity created
2021-12-17 15:33:19: AuthorizationManagementActivity resumed
2021-12-17 15:33:19: AuthorizationManagementActivity paused
2021-12-17 15:33:20: LoginScreen resumed
2021-12-17 15:33:20: AuthorizationManagementActivity destroyed
2021-12-17 15:33:20: RedirectUriReceiverActivity destroyed
2021-12-17 15:33:20: LoginScreen paused
2021-12-17 15:33:20: HomeScreen created
2021-12-17 15:33:21: HomeScreen resumed
2021-12-17 15:33:21: LoginScreen destroyed