Is the library you’re using for reading the code up to date?
Does the error occur in your own code, or the library’s code?
Which QR-Code library are you using? There’s a lot!
Also, if you haven’t already, take a look at our guide for asking questions:
(Don’t feel bad about it though, breaking down a problem and communicating it well is a skill that is really only learned through practice. It’s something that I still have trouble with sometimes )