unable to verify the first certificate

[Atornous12]

Error: FetchError: request to https://iporesult.cdsc.com.np/result/companyShares/fileUploaded failed, reason: unable to verify the first certificate
at ClientRequest. (C:\Users\path\ipoResult\node_modules\node-fetch\lib\index.js:1505:11)
at ClientRequest.emit (node:events:513:28)
at TLSSocket.socketErrorListener (node:_http_client:490:9)
at TLSSocket.emit (node:events:513:28)
at emitErrorNT (node:internal/streams/destroy:151:8)
at emitErrorCloseNT (node:internal/streams/destroy:116:3)
at process.processTicksAndRejections (node:internal/process/task_queues:82:21) {
type: 'system',
errno: 'UNABLE_TO_VERIFY_LEAF_SIGNATURE',
code: 'UNABLE_TO_VERIFY_LEAF_SIGNATURE'
}

this was prompted when I did:

node ocr.js

am not sure what the issue is, mind looking into it?