503 Service Unavailable in Azure Data Factory

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Verdere opvolging van de 503 Service Unavailable-foutmelding vindt plaats op:

Remote server returned an error 503 Server Error and 502 Bad Gateway

I get two types of errors for the dataflows in Power BI: Error: Encountered user gateway exception: 'OData: Request failed: The remote server returned an error: (503) Server Unavailable. (Service Unavailable). Error: Encountered user gateway exception: 'OData: Request failed: The remote server returned an error: (502) Bad Gateway. (Bad Gateway). The OData source gateways are online and the dataflows have not been changed this week. Is there anything I can do to fix these errors?