diff --git a/app/src/main/java/kr/co/vividnext/sodalive/audio_content/AudioContentPlayService.kt b/app/src/main/java/kr/co/vividnext/sodalive/audio_content/AudioContentPlayService.kt
index b2d3c5e..6f3d6a0 100644
--- a/app/src/main/java/kr/co/vividnext/sodalive/audio_content/AudioContentPlayService.kt
+++ b/app/src/main/java/kr/co/vividnext/sodalive/audio_content/AudioContentPlayService.kt
@@ -146,7 +146,7 @@ class AudioContentPlayService :
             }
 
             MusicAction.PLAY.name -> {
-                if (!isPlaying) {
+                if (!isPlaying && this::mediaPlayer.isInitialized) {
                     mediaPlayer.start()
                     toggleIsPlaying()
                     updateNotification()
@@ -154,7 +154,7 @@ class AudioContentPlayService :
             }
 
             MusicAction.PAUSE.name -> {
-                if (isPlaying) {
+                if (isPlaying && this::mediaPlayer.isInitialized) {
                     mediaPlayer.pause()
                     toggleIsPlaying()
                     updateNotification()
@@ -186,11 +186,14 @@ class AudioContentPlayService :
 
             MusicAction.PROGRESS.name -> {
                 val progress = intent.getIntExtra(Constants.EXTRA_AUDIO_CONTENT_PROGRESS, 0)
-                if (progress > 0) {
-                    if (contentId != null) saveNewPlaybackTracking(
-                        totalDuration = mediaPlayer.duration,
-                        progress = progress
-                    )
+                if (progress > 0 && this::mediaPlayer.isInitialized) {
+                    if (contentId != null) {
+                        saveNewPlaybackTracking(
+                            totalDuration = mediaPlayer.duration,
+                            progress = progress
+                        )
+                    }
+
                     mediaPlayer.seekTo(progress)
                 }
             }
@@ -258,7 +261,7 @@ class AudioContentPlayService :
                                 }
                         )
 
-                        if (isPlaying) {
+                        if (isPlaying && this::mediaPlayer.isInitialized) {
                             mediaPlayer.stop()
                             setEndPositionPlaybackTracking(mediaPlayer.currentPosition)
 
@@ -290,12 +293,12 @@ class AudioContentPlayService :
         return null
     }
 
-    override fun onCompletion(mp: MediaPlayer?) {
-        setEndPositionPlaybackTracking(mediaPlayer.currentPosition)
+    override fun onCompletion(mp: MediaPlayer) {
+        setEndPositionPlaybackTracking(mp.currentPosition)
 
         if (SharedPreferenceManager.isContentPlayLoop) {
-            saveNewPlaybackTracking(totalDuration = mediaPlayer.duration, progress = 0)
-            mediaPlayer.start()
+            saveNewPlaybackTracking(totalDuration = mp.duration, progress = 0)
+            mp.start()
         } else {
             toggleIsPlaying(false)
             mediaPlayer.release()
@@ -370,61 +373,63 @@ class AudioContentPlayService :
     }
 
     override fun onPrepared(mp: MediaPlayer?) {
-        saveNewPlaybackTracking(totalDuration = mediaPlayer.duration, progress = 0)
-        sendBroadcast(
-            Intent(Constants.ACTION_AUDIO_CONTENT_RECEIVER)
-                .apply {
-                    putExtra(
-                        Constants.EXTRA_AUDIO_CONTENT_NEXT_ACTION,
-                        MusicAction.PLAY
-                    )
+        if (this::mediaPlayer.isInitialized) {
+            saveNewPlaybackTracking(totalDuration = mediaPlayer.duration, progress = 0)
+            sendBroadcast(
+                Intent(Constants.ACTION_AUDIO_CONTENT_RECEIVER)
+                    .apply {
+                        putExtra(
+                            Constants.EXTRA_AUDIO_CONTENT_NEXT_ACTION,
+                            MusicAction.PLAY
+                        )
 
-                    putExtra(
-                        Constants.EXTRA_AUDIO_CONTENT_DURATION,
-                        mediaPlayer.duration
-                    )
+                        putExtra(
+                            Constants.EXTRA_AUDIO_CONTENT_DURATION,
+                            mediaPlayer.duration
+                        )
 
-                    putExtra(
-                        Constants.EXTRA_AUDIO_CONTENT_ID,
-                        contentId
-                    )
+                        putExtra(
+                            Constants.EXTRA_AUDIO_CONTENT_ID,
+                            contentId
+                        )
 
-                    putExtra(
-                        Constants.EXTRA_AUDIO_CONTENT_ALERT_PREVIEW,
-                        true
-                    )
-                }
-        )
+                        putExtra(
+                            Constants.EXTRA_AUDIO_CONTENT_ALERT_PREVIEW,
+                            true
+                        )
+                    }
+            )
 
-        sendBroadcast(
-            Intent(Constants.ACTION_MAIN_AUDIO_CONTENT_RECEIVER)
-                .apply {
-                    putExtra(
-                        Constants.EXTRA_AUDIO_CONTENT_PLAYING,
-                        false
-                    )
+            sendBroadcast(
+                Intent(Constants.ACTION_MAIN_AUDIO_CONTENT_RECEIVER)
+                    .apply {
+                        putExtra(
+                            Constants.EXTRA_AUDIO_CONTENT_PLAYING,
+                            false
+                        )
 
-                    putExtra(
-                        Constants.EXTRA_AUDIO_CONTENT_SHOWING,
-                        true
-                    )
+                        putExtra(
+                            Constants.EXTRA_AUDIO_CONTENT_SHOWING,
+                            true
+                        )
 
-                    putExtra(
-                        Constants.EXTRA_AUDIO_CONTENT_TITLE,
-                        title
-                    )
+                        putExtra(
+                            Constants.EXTRA_AUDIO_CONTENT_TITLE,
+                            title
+                        )
 
-                    putExtra(
-                        Constants.EXTRA_NICKNAME,
-                        nickname
-                    )
+                        putExtra(
+                            Constants.EXTRA_NICKNAME,
+                            nickname
+                        )
 
-                    putExtra(
-                        Constants.EXTRA_AUDIO_CONTENT_COVER_IMAGE_URL,
-                        coverImageUrl
-                    )
-                }
-        )
+                        putExtra(
+                            Constants.EXTRA_AUDIO_CONTENT_COVER_IMAGE_URL,
+                            coverImageUrl
+                        )
+                    }
+            )
+        }
     }
 
     private fun updateNotification() {