Problem with API /session/token

Hello Everyone,

I am not a developer but I am using a no code tool (bubble.io) to hit the Zerodha APIs. However, I am getting an error 400 from kite for "/session/token" API. Here is the log of API request and response:

Request:
{
"method": "POST",
"path": "/",
"query": {},
"headers": {
"x-forwarded-for": "52.89.210.79",
"x-forwarded-proto": "https",
"x-forwarded-port": "443",
"host": "ed193c4f06c5389c5e271c04e7571ca9.m.pipedream.net",
"x-amzn-trace-id": "Root=1-61063000-4522b5bb7fa7d8e2501f2ac2",
"content-length": "166",
"x-kite-version": "3",
"content-type": "application/json",
"accept-encoding": "gzip, deflate"
},
"bodyRaw": "{\n\t\"api_key\":\"lyb3oovz5cenzyav\",\n\t\"request_token\":\"UKY0ipvfSNyhf6ICzJDJRdu7Cp67Eneb\",\n\t\"checksum\":\"e72404cc7529df6096ef197a778080c0b95d32b2600063e4c0823684f0190192\"\n}",
"body": {
"api_key": "lyb3oovz5cenzyav",
"request_token": "UKY0ipvfSNyhf6ICzJDJRdu7Cp67Eneb",
"checksum": "e72404cc7529df6096ef197a778080c0b95d32b2600063e4c0823684f0190192"
}
}


Response:



Can anyone please help what is the issue with the request?

P.S: Kindly note that I have modified the api_key, request_token and checksum values here but I am using the correct values while posting the same in original request.