diff --git a/stress_test/generate_mock_data.php b/stress_test/generate_mock_data.php
index d9677e57..a0e00ff2 100644
--- a/stress_test/generate_mock_data.php
+++ b/stress_test/generate_mock_data.php
@@ -1,4 +1,6 @@
 <?php
+error_reporting(0);
+ini_set('display_errors', 0);
 // stress_test/generate_mock_data.php
 // Generates a valid JWT for the driver using the system's JWT_SECRET_KEY
 require_once dirname(__DIR__) . '/backend/connect.php';
diff --git a/stress_test/load_test.js b/stress_test/load_test.js
index bd02d862..6eb10ebc 100644
--- a/stress_test/load_test.js
+++ b/stress_test/load_test.js
@@ -29,7 +29,9 @@ const argv = yargs(hideBin(process.argv))
 function getMockDriverJwt(driverId) {
     try {
         const output = execSync(`php generate_mock_data.php ${driverId}`).toString();
-        return JSON.parse(output).jwt;
+        // Extract JSON portion in case of PHP warnings
+        const jsonString = output.substring(output.indexOf('{'));
+        return JSON.parse(jsonString).jwt;
     } catch (err) {
         console.error(`Failed to generate JWT for driver ${driverId}`, err.message);
         return 'mock_jwt';