Issuer error brake app

I copied a QR code like this:

otpauth://totp/:totp-secret?secret=AAAAAAAAAAAAAAAA&issuer=:totp-secret

This : breaks the app. It don't show the OTP and you can not add a new one. The error in the log file: file:///opt/click.ubuntu.com/tfamanager.cibersheep/0.9.0/qml/js/otpauth.min.js:22: TypeError: Invalid 'issuer' parameter