Between 7:11 PM and 7:47 PM UTC, the stores that uses VTEX Intelligent Search without relevance settings applied would receive an empty search result on navigation pages and searches using the search bar. We are working to avoid this issue in the future. The service is now operating normally.

You can read the incident report here: https://io.vtex.com.br/incident-report/2021-06-22-Incident_22_Jun._2021_Intelligent_Search_Search_API_partial_out_of_service.pdf