I think Play store error 469 occurs when you try to download or update apps from Play Store.
Never mind, here are some possible solution that you can try to fix it:
Just wait and try after some time to download the app.
Delete your Google Play Store data in Settings > Apps > All > Google Play Store > Clear data. Delete data from Google Services Framework as well (Note: this will assign a new Google ID to your device, as if you had factory reset it, meaning your Google apps may temporarily act up afterward).
Delete your Google account on the device, reboot your phone and re-add your Google account in Settings > Accounts > Add Account > Google Account.
I hope the solution might help you in fixing the play store error code 469.