URGENT PLS: One of either symbol or instrument_key is invalid Only when i deploy on my website hosting

I am trying to connect the websocket using PHP, to receive live price of nifty 50 and bank nifty indexes, so i did locally on my computer, which worked, websocket got connected, prices starting appearing, but the issue is when i deployed the code on hostinger hosting on my website, there the websocket shows connected but the prices are not getting fetched in live market, and showing me this below error. Pls help me in this.

2025-03-26 13:12:10 - Nifty 50 HTTP Error: 400 Response: {“status”:“error”,“errors”:[{“errorCode”:“UDAPI1087”,“message”:“One of either symbol or instrument_key is invalid.”,“propertyPath”:null,“invalidValue”:null,“error_code”:“UDAPI1087”,“property_path”:null,“invalid_value”:null}]}
2025-03-26 13:15:20 - Nifty 50 Response: Array
(
[status] => success
[data] => Array
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)

)

2025-03-26 13:15:20 - Nifty Bank Response: Array
(
[status] => success
[data] => Array
(
)

)

2025-03-26 13:15:21 - Nifty 50 Response: Array
(
[status] => success
[data] => Array
(
)

)

Hi @SANTOSH_21937832,

Welcome to the Upstox Community!

Please get the instrument keys from this instrument json file: Instruments | Upstox Developer API

Thanks.