the IRS WMR webpage is only for 2020 returns. you can go on the IRS website, register, and see if they have a tax return transcript for you for 2019. when did you file? some late filed returns for 2019 are still being processed by the IRS so no transcript. but if you filed say before 4/15/2020 the IRS should have processed it. there would be a transcript. if there's a transcript you would need to follow up with the IRS about what happened to your refund. if no transcript and it's been over a year since you filed, it is likely the IRS never got it so you would need to refile.
