diff --git a/api/setup/saveWizard.cfm b/api/setup/saveWizard.cfm
index dcc1bbd..6bd1b1a 100644
--- a/api/setup/saveWizard.cfm
+++ b/api/setup/saveWizard.cfm
@@ -145,7 +145,21 @@ try {
     // Clean control characters that Lucee's JSON parser can't handle
     requestBody = reReplace(requestBody, "[\x00-\x08\x0B\x0C\x0E-\x1F]", "", "all");
 
-    data = deserializeJSON(requestBody);
+    try {
+        data = deserializeJSON(requestBody);
+    } catch (any jsonErr) {
+        // Log snippet around error for debugging
+        nums = reMatch("\d+", jsonErr.message);
+        errorPos = 0;
+        for (n in nums) { if (val(n) > 1000) { errorPos = val(n); break; } }
+        if (errorPos > 0) {
+            snippet = mid(requestBody, max(1, errorPos - 100), 250);
+            arrayAppend(response.errors, "JSON parse failed near position #errorPos#: [#snippet#]");
+        }
+        arrayAppend(response.errors, jsonErr.message);
+        writeOutput(serializeJSON(response));
+        abort;
+    }
 
     businessId = structKeyExists(data, "businessId") ? val(data.businessId) : 0;
     userId = structKeyExists(data, "userId") ? val(data.userId) : 0;