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?