diff --git a/Sora/Utils/MediaPlayer/CustomPlayer/CustomPlayer.swift b/Sora/Utils/MediaPlayer/CustomPlayer/CustomPlayer.swift
index 4e02d5a..ca71ca1 100644
--- a/Sora/Utils/MediaPlayer/CustomPlayer/CustomPlayer.swift
+++ b/Sora/Utils/MediaPlayer/CustomPlayer/CustomPlayer.swift
@@ -428,7 +428,20 @@ class CustomMediaPlayerViewController: UIViewController, UIGestureRecognizerDele
             NotificationCenter.default.removeObserver(foregroundToken)
         }
         
+        inactivityTimer?.invalidate()
+        updateTimer?.invalidate()
+        lockButtonTimer?.invalidate()
+        dimButtonTimer?.invalidate()
+        loadedTimeRangesObservation?.invalidate()
+        playerTimeControlStatusObserver?.invalidate()
+        volumeObserver?.invalidate()
+        
+        player.replaceCurrentItem(with: nil)
         player.pause()
+        
+        playerViewController = nil
+        sliderHostingController = nil
+        try? AVAudioSession.sharedInstance().setActive(false)
     }
 
     override func observeValue(forKeyPath keyPath: String?, of object: Any?, change: [NSKeyValueChangeKey : Any]?, context: UnsafeMutableRawPointer?) {