diff --git a/app/templates/but/bulletin.html b/app/templates/but/bulletin.html
index d394f255..826356ff 100644
--- a/app/templates/but/bulletin.html
+++ b/app/templates/but/bulletin.html
@@ -31,6 +31,18 @@
 					display: none;
 				}`;
 			releve.shadowRoot.appendChild(style);
+		})
+		.catch(error => {
+			let div = document.createElement("div");
+			div.innerText = "Une erreur s'est produite lors du transfère des données.";
+			div.style.fontSize = "24px";
+			div.style.color = "#d93030";
+
+			let releve = document.querySelector("releve-but");
+			releve.after(div);
+			releve.remove();
+			
+			throw 'Fin du script - données invalides';
 		});
 	document.querySelector("html").style.scrollBehavior = "smooth";
 </script>