QR scan swapping characters

I am currently working with a QR made with qrcode https://davidshimjs.github.io/qrcodejs/

But I have trouble while reading it.

The content of the QR is checked before sending and is a JWT token like this one:

eyJhbGciOiJIUzUxMiIsInR5cCI6IkpXVCJ9.eyJpc3MiOiJ7XCJ0YXJqZXRhXCI6XCIqKioqNCoqKioqKioqKlwiLFwibm9tXCI6XCIqKioqKioqKioqKioqKlwifSIsImlhdCI6MTY4NjMwODcwODk5MX0.IajSQzRdC3PkxI4opTbwk-bqcCE-75z9whYQwt5Z2nFwVLGjHZRbTcjC1dy-jyTpPbVsWimQU96jxynopepCXQ

But when i scan my QR what is being send in the network is the same token but swapping the '-' with '

eyJhbGciOiJIUzUxMiIsInR5cCI6IkpXVCJ9.eyJpc3MiOiJ7XCJ0YXJqZXRhXCI6XCIqKioqNCoqKioqKioqKlwiLFwibm9tXCI6XCIqKioqKioqKioqKioqKlwifSIsImlhdCI6MTY4NjMwODcwODk5MX0.IajSQzRdC3PkxI4opTbwk'bqcCE'75z9whYQwt5Z2nFwVLGjHZRbTcjC1dy'jyTpPbVsWimQU96jxynopepCXQ 

This make us unable to decode our token so i would like to know two thing:

1. Why is this happening?
2. What would be the best approach to solve it.

Thanks.

EDIT 1: UPDATE

If i can the QR with a different app, like my mobile app the qr I can read the qr in the right way so the problem is not in the QR but in the way that they read the QR and send it to the backEnd. I will delete the JWT and QR-Code TAGS.

After talking with our provider it seems like the problem is not in the code but in the configuration of the different QR scanners they where trying to use, to be more exact, some of the QR scans they are currently using don´t work with UTF-8 but with other ISO that doesn´t allow some special characters.

This make impossible for them to decode a QR code if when coding it we have special characters.

The easiest solution is to encode the JWT in base 64 to avoid the need to check every QR scanner