Update server.js

server.js

@@ -11,7 +11,7 @@ app.use(bodyParser.json());
 // API endpoint for chatting
 app.get('/chat', async (req, res) => {
     const token = req.query.token || process.env.token;
-    const characterId = req.query.characterId;
+    const characterId = req.query.characterId || "smtV3Vyez6ODkwS8BErmBAdgGNj-1XWU73wIFVOY1hQ"
     const chatId = req.query.chatId;
     const voiceId = req.query.voiceId || 'f4b33b1d-2e5a-40a8-8a07-958140cd104d';
     const message = req.query.message;