Link crash

Build version: 1.8.1
Build date: 1981-01-01 01:01:02
Current date: 2022-02-18 10:17:35
Device: Samsung SM-G975F
OS version: Android 12 (SDK 31)

Stack trace:
java.lang.IllegalArgumentException: com.civix.link: Targeting S+ (version 31 and above) requires that one of FLAG_IMMUTABLE or FLAG_MUTABLE be specified when creating a PendingIntent.
Strongly consider using FLAG_IMMUTABLE, only use FLAG_MUTABLE if some functionality depends on the PendingIntent being mutable, e.g. if it needs to be used with inline replies or bubbles.
    at android.app.PendingIntent.checkFlags(PendingIntent.java:382)
    at android.app.PendingIntent.getActivityAsUser(PendingIntent.java:465)
    at android.app.PendingIntent.getActivity(PendingIntent.java:451)
    at android.app.PendingIntent.getActivity(PendingIntent.java:415)
    at com.google.firebase.messaging.CommonNotificationBuilder.createContentIntent(com.google.firebase:firebase-messaging@@20.2.4:125)
    at com.google.firebase.messaging.CommonNotificationBuilder.createNotificationInfo(com.google.firebase:firebase-messaging@@20.2.4:27)
    at com.google.firebase.messaging.CommonNotificationBuilder.createNotificationInfo(com.google.firebase:firebase-messaging@@20.2.4:9)
    at com.google.firebase.messaging.DisplayNotification.handleNotification(com.google.firebase:firebase-messaging@@20.2.4:27)
    at com.google.firebase.messaging.FirebaseMessagingService.dispatchMessage(com.google.firebase:firebase-messaging@@20.2.4:76)
    at com.google.firebase.messaging.FirebaseMessagingService.passMessageIntentToSdk(com.google.firebase:firebase-messaging@@20.2.4:55)
    at com.google.firebase.messaging.FirebaseMessagingService.handleMessageIntent(com.google.firebase:firebase-messaging@@20.2.4:34)
    at com.google.firebase.messaging.FirebaseMessagingService.handleIntent(com.google.firebase:firebase-messaging@@20.2.4:23)
    at com.google.firebase.messaging.EnhancedIntentService.lambda$processIntent$0$EnhancedIntentService(com.google.firebase:firebase-messaging@@20.2.4:43)
    at com.google.firebase.messaging.EnhancedIntentService$$Lambda$0.run(Unknown Source:6)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1167)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
    at com.google.android.gms.common.util.concurrent.zza.run(com.google.android.gms:play-services-basement@@18.0.0:2)
    at java.lang.Thread.run(Thread.java:920)

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