diff --git a/src/module/alertModal.js b/src/module/alertModal.js
index 6666982..ea2816c 100644
--- a/src/module/alertModal.js
+++ b/src/module/alertModal.js
@@ -379,13 +379,13 @@ export async function uploadFailedSecond(detail) {
         manySrt = "There are more errors.";
         break;
       case "unrecognized":
-        content = `<li>Data unrecognizable in Status Column: (Row #${i.loc[1]}, "${escapeHtml(i.input)}")</li>`;
+        content = `<li>Data unrecognizable in Status Column: (Row #${i.loc?.[1] ?? "?"}, "${escapeHtml(i.input)}")</li>`;
         break;
       case "malformed":
-        content = `<li>Data malformed in Timestamp Column: (Row #${i.loc[1]}, "${escapeHtml(i.input)}")</li>`;
+        content = `<li>Data malformed in Timestamp Column: (Row #${i.loc?.[1] ?? "?"}, "${escapeHtml(i.input)}")</li>`;
         break;
       case "missing":
-        switch (i.loc[2]) {
+        switch (i.loc?.[2]) {
           case "case id":
             key = "Case ID";
             break;
@@ -402,10 +402,10 @@ export async function uploadFailedSecond(detail) {
             key = "Status";
             break;
           default:
-            key = escapeHtml(String(i.loc[2]));
+            key = escapeHtml(String(i.loc?.[2] ?? ""));
             break;
         }
-        content = `<li>Data missing in ${key} Column: (Row #${i.loc[1]})</li>`;
+        content = `<li>Data missing in ${key} Column: (Row #${i.loc?.[1] ?? "?"})</li>`;
         break;
     }
     srt += content;