Getting unauthorized while using enpoints to claim POAPs

Trying the qr-codes endpoint for claiming POAPs and getting a 403 unauthorized
/event/{id}/qr-codes

Tried to check if the secret code is valid using /event/validate but getting unauthorized there as well

My event id is 102279. Please help me understand how I can claim using the flow shown here - https://documentation.poap.tech/docs/popular-flow#4-minting-a-poap-directly-to-a-wallet