diff --git a/src/components/manifest/Form.tsx b/src/components/manifest/Form.tsx
index 50d4df3..087353a 100644
--- a/src/components/manifest/Form.tsx
+++ b/src/components/manifest/Form.tsx
@@ -79,6 +79,10 @@ const Form = (props: any) => {
     });
   };
 
+  function getFormattedError(resJson) {
+    return resJson.message.startsWith("java.lang.RuntimeException:") ? (String(resJson.message)).substr(27) : resJson.message;
+  }
+
   return (
     <div id="mainComponent">
       <MenuAppBar
@@ -140,10 +144,7 @@ const Form = (props: any) => {
                         }
                       } else {
                         toast.update(toastId, {
-                          render: formatDisplayData({
-                            error: resJson.error,
-                            message: resJson.message,
-                          }),
+                          render: getFormattedError(resJson),
                           type: "error",
                           autoClose: 5000,
                         });