I have received a turn over laravel project to me,.. and it has function to receive BTC payments by scanning their blockchain address/QR code. the function was working last 6 months,.. but now is not work,... do you have idea that blockchain api/web socket has been updated?
Unfortunately, you have not shown us how you implemented the receive payment option in your project. you may be using a deprecated version of the receive payments API.
the new version can be found here https://www.blockchain.com/api/api_receive.
you will now need a new API key and an xPub key. you can request the new API key here https://api.blockchain.info/v2/apikey/request/.