Fix:Prevent crashes and catch exceptions for crash reports

android/app/src/main/java/com/audiobookshelf/app/player/PlayerNotificationService.kt

@@ -226,6 +226,11 @@ class PlayerNotificationService : MediaBrowserServiceCompat()  {
     mediaSessionConnector = MediaSessionConnector(mediaSession)
     val queueNavigator: TimelineQueueNavigator = object : TimelineQueueNavigator(mediaSession) {
       override fun getMediaDescription(player: Player, windowIndex: Int): MediaDescriptionCompat {
+        if (currentPlaybackSession == null) {
+          Log.e(tag,"Playback session is not set - returning blank MediaDescriptionCompat")
+          return MediaDescriptionCompat.Builder().build()
+        }
+
         val coverUri = currentPlaybackSession!!.getCoverUri()
 
         // Fix for local images crashing on Android 11 for specific devices
@@ -643,8 +648,13 @@ class PlayerNotificationService : MediaBrowserServiceCompat()  {
 
   fun closePlayback() {
     Log.d(tag, "closePlayback")
-    currentPlayer.clearMediaItems()
+    try {
-    currentPlayer.stop()
+      currentPlayer.stop()
+      currentPlayer.clearMediaItems()
+    } catch(e:Exception) {
+      Log.e(tag, "Exception clearing exoplayer $e")
+    }
+
     currentPlaybackSession = null
     clientEventEmitter?.onPlaybackClosed()
     PlayerListener.lastPauseTime = 0

android/app/src/main/java/com/audiobookshelf/app/plugins/AbsDownloader.kt

@@ -401,9 +401,13 @@ class AbsDownloader : Plugin() {
 
                 Log.d(tag, "DOWNLOAD: Move file to final destination path: ${downloadItemPart.finalDestinationPath}")
                 val localFolderFile = DocumentFileCompat.fromUri(mainActivity,Uri.parse(downloadItemPart.localFolderUrl))
-                val mimetype = if (downloadItemPart.audioTrack != null) MimeType.AUDIO else MimeType.IMAGE
+                if (localFolderFile == null) {
-                val fileDescription = FileDescription(downloadItemPart.filename, downloadItemPart.itemTitle, mimetype)
+                  Log.e(tag, "Local Folder File from uri is null")
-                file?.moveFileTo(mainActivity,localFolderFile!!,fileDescription,fcb)
+                } else {
+                  val mimetype = if (downloadItemPart.audioTrack != null) MimeType.AUDIO else MimeType.IMAGE
+                  val fileDescription = FileDescription(downloadItemPart.filename, downloadItemPart.itemTitle, mimetype)
+                  file?.moveFileTo(mainActivity,localFolderFile,fileDescription,fcb)
+                }
               } else {
                 // Why is kotlin requiring an else here..
               }