diff --git a/Assets/Scripts/PropositionHandler.cs b/Assets/Scripts/PropositionHandler.cs
index 5542af2..2e80919 100644
--- a/Assets/Scripts/PropositionHandler.cs
+++ b/Assets/Scripts/PropositionHandler.cs
@@ -16,7 +16,6 @@ public class PropositionHandler : MonoBehaviour
 
     public void ShowQuestion(Question currentQuestion)
     {
-
         List<Proposition> props = currentQuestion.propositions.Values.ToList();
         string enPrompt = prompts.GetPromptById(currentQuestion.promptId).en;
         promptLabel.text = enPrompt;
@@ -24,14 +23,21 @@ public void ShowQuestion(Question currentQuestion)
         for (int i = 0; i < 2; i++)
         {
             int index = i; // Capture la valeur de i pour cette itération
-            StorageManager.ConvertGoogleStorageURLToHttpsUrl(props[i].photoUrl, _httpURL =>
+            if(props[i].photoUrl == null)
             {
-                StartCoroutine(StorageManager.DownloadImage_Coroutine(_httpURL, (Texture texture) =>
+                Debug.Log("One player did not send a proposition !", this);
+            }
+            else
+            {
+                StorageManager.ConvertGoogleStorageURLToHttpsUrl(props[i].photoUrl, _httpURL =>
                 {
-                    Sprite sprite = Sprite.Create(texture as Texture2D, new Rect(0, 0, texture.width, texture.height), Vector2.zero);
-                    btns[index].sprite = sprite; // Utilise l'index local au lieu de i
-                }));
-            });
+                    StartCoroutine(StorageManager.DownloadImage_Coroutine(_httpURL, (Texture texture) =>
+                    {
+                        Sprite sprite = Sprite.Create(texture as Texture2D, new Rect(0, 0, texture.width, texture.height), Vector2.zero);
+                        btns[index].sprite = sprite; // Utilise l'index local au lieu de i
+                    }));
+                });
+            }
         }
 
     }