Unable to fetch LTP

I have attested the drive link to the files that contains the script to connect to webscoket, and when I run the script, below is the output I get:

2025-05-20 08:11:36,082 | :rocket: Starting Upstox WebSocket Market Feed…
2025-05-20 08:11:36,398 | :link: Connecting to WebSocket: wss://wsfeeder-api.upstox.com/market-data-feeder/v3/upstox-developer-api/feeds?requestId=252dc3b9-9e0d-47b8-a8da-ffc01c9d335f&code=vi33I-06edeb57-ea6e-4965-9221-02bd521474d2
2025-05-20 08:11:37,005 | :green_circle: LTP subscription sent for NSE_EQ|INE002A01018

Hence no LTP, could you please point out what I am missing and help me diagnose this script.
Thankyou.https://drive.google.com/drive/folders/1RHnBDOesEgtYG9GUioMICDPA5jsm7LB2?usp=drive_link

Hi @D_11067040,

Our team is checking this and get back to you on this, thanks.

Awaiting your solution @Ushnota, thanks.

@D_11067040 Please make sure the WebSocket request message should be sent in binary format, not as a text/json message.

Refer to the sample websocket implementation here