diff --git a/apps/OpenSignServer/cloud/parsefunction/encryptedPdf.js b/apps/OpenSignServer/cloud/parsefunction/encryptedPdf.js
index 7fb6c58cf..315cf737b 100644
--- a/apps/OpenSignServer/cloud/parsefunction/encryptedPdf.js
+++ b/apps/OpenSignServer/cloud/parsefunction/encryptedPdf.js
@@ -1,6 +1,6 @@
 import { PostHog } from 'posthog-node';
 const ph_project_api_key = process.env.PH_PROJECT_API_KEY;
-const client = new PostHog(ph_project_api_key);
+const client = ph_project_api_key ? new PostHog(ph_project_api_key) : '';
 export default async function encryptedpdf(request) {
   const email = request.params.email;
   if (client) {