Link crash

Build version: 1.7.9
Build date: 1981-01-01 01:01:02
Current date: 2022-01-13 14:17:01
Device: Samsung SM-A530F
OS version: Android 9 (SDK 28)

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$1.onSuccess(UpdateManager.java:77)
    at com.google.android.play.core.tasks.e.run(Unknown Source:27)
    at android.os.Handler.handleCallback(Handler.java:873)
    at android.os.Handler.dispatchMessage(Handler.java:99)
    at android.os.Looper.loop(Looper.java:214)
    at android.app.ActivityThread.main(ActivityThread.java:7078)
    at java.lang.reflect.Method.invoke(Native Method)
    at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:494)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:964)

User actions:
2022-01-13 13:57:35: SplashScreen created
2022-01-13 13:57:35: SplashScreen resumed
2022-01-13 13:57:36: SplashScreen paused
2022-01-13 13:57:36: HomeScreen created
2022-01-13 13:57:37: HomeScreen resumed
2022-01-13 13:57:37: SplashScreen destroyed
2022-01-13 13:57:38: HomeScreen paused
2022-01-13 13:57:40: HomeScreen resumed
2022-01-13 13:57:45: HomeScreen paused
2022-01-13 13:57:45: ChatScreen created
2022-01-13 13:57:45: ChatScreen resumed
2022-01-13 13:57:47: ChatScreen paused
2022-01-13 13:57:47: HomeScreen resumed
2022-01-13 13:57:47: ChatScreen destroyed
2022-01-13 13:57:48: HomeScreen paused
2022-01-13 13:57:48: ChatScreen created
2022-01-13 13:57:48: ChatScreen resumed
2022-01-13 13:58:05: ChatScreen paused
2022-01-13 13:58:05: GroupConversationInfoScreen created
2022-01-13 13:58:05: GroupConversationInfoScreen resumed
2022-01-13 13:58:08: GroupConversationInfoScreen paused
2022-01-13 13:58:08: GroupUserListScreen created
2022-01-13 13:58:08: GroupUserListScreen resumed
2022-01-13 13:58:20: GroupUserListScreen paused
2022-01-13 13:58:20: GroupConversationInfoScreen resumed
2022-01-13 13:58:21: GroupUserListScreen destroyed
2022-01-13 13:58:24: GroupConversationInfoScreen paused
2022-01-13 13:58:24: ChatScreen resumed
2022-01-13 13:58:24: GroupConversationInfoScreen destroyed
2022-01-13 13:59:05: ChatScreen paused
2022-01-13 13:59:05: BoardScreen created
2022-01-13 13:59:06: BoardScreen resumed
2022-01-13 14:00:38: BoardScreen paused
2022-01-13 14:00:38: ChatScreen resumed
2022-01-13 14:00:38: BoardScreen destroyed
2022-01-13 14:00:39: ChatScreen paused
2022-01-13 14:00:39: HomeScreen resumed
2022-01-13 14:00:40: ChatScreen destroyed
2022-01-13 14:00:40: HomeScreen paused
2022-01-13 14:00:41: HomeScreen destroyed
2022-01-13 14:16:58: SplashScreen created
2022-01-13 14:16:58: SplashScreen resumed
2022-01-13 14:16:58: SplashScreen paused
2022-01-13 14:16:58: HomeScreen created
2022-01-13 14:16:58: HomeScreen resumed
2022-01-13 14:16:58: SplashScreen destroyed