diff --git a/html/script.js b/html/script.js
index 872dcb38..629b8fc6 100644
--- a/html/script.js
+++ b/html/script.js
@@ -404,7 +404,22 @@ function fetchDone(data) {
         if (!data.aircraft || !data.now) {
             let error = data.error;
             if (error) {
-                jQuery("#update_error_detail").text(error);
+
+                const errorParts = error.split(":");
+                const errorCode = errorParts[0].trim();
+                const errorMessage = errorParts[1] ? errorParts[1].trim() : "Unknown error";
+
+                let additionalMessage = "";
+
+                if (errorCode === "401") {
+                    additionalMessage = " Please refresh the browser to continue.";
+                } else if (errorCode === "403") {
+                    additionalMessage = " reCAPTCHA validation failed.";
+                }
+
+                const displayMessage = errorMessage + additionalMessage;
+
+                jQuery("#update_error_detail").text(displayMessage);
                 jQuery("#update_error").css('display','block');
                 StaleReceiverCount++;
             }