I see the error "PreAuthentication failed with error" What should I do?
The error message “PreAuthentication failed with error: Validation data doesn't exist (or something similar to this)” simply means that you are not yet on a version of the app that supports device tracking (a security feature we have implemented)
Here’s how to fix this
Please update to the latest version of the Yellow Card app
If the problem still persists, please reach out to us via [email protected]. Our team will look into it and provide you with a solution within 24 hours.