diff --git a/app/__init__.py b/app/__init__.py
index afd7ece..f494729 100644
--- a/app/__init__.py
+++ b/app/__init__.py
@@ -120,6 +120,6 @@ def create_app():
         """Stop services when app context is torn down."""
         if exception:
             scheduler_service.stop()
-            music_player_service.stop_vlc_instance()
+            # music_player_service.stop_vlc_instance()
 
     return app
diff --git a/app/models/sound_played.py b/app/models/sound_played.py
index 6b82d06..8a0e02a 100644
--- a/app/models/sound_played.py
+++ b/app/models/sound_played.py
@@ -20,7 +20,7 @@ class SoundPlayed(db.Model):
     user_id: Mapped[int] = mapped_column(
         Integer,
         ForeignKey("user.id"),
-        nullable=False,
+        nullable=True,
     )
     sound_id: Mapped[int] = mapped_column(
         Integer,