If you're using Firebase free plan and see that warning:
Data stopped flowing to BigQuery because your project reached the sandbox storage limit. To access more storage, upgrade to Blaze and leave the sandbox.
We strongly advise upgrading to Blaze (pay-as-you-go) Firebase plan. It enables streaming data export and removes the 10 GB storage limit.
In our experience, enabling the Firebase Blaze plan incurs on average about $0.2 per 1.000.000 events monthly cost.