Hello @Rafael Augusto Miranda , the error is caused by the Azure DevOps app service principal still present in your tenant. Please remove it using the following PowerShell script and a work or student (not personal) account:
Connect-AzureAD -TenantId <TENANT ID>
Get-AzureADServicePrincipal -Filter "appId eq '499b84ac-1321-427f-aa17-267ca6975798'"|Remove-AzureADServicePrincipal
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