On 24-02-2020 we announced that due to a technical issue on the CORDEX, access to download CORDEX regional climate model data on single levels for Europe from the Climate Data Store was temporally disabled.
We received an update from the CDS team that access to the data is reopened but some requests may unpredictability fail. If your request fails, please try again later. The CDS team continues to investigate the issue until full access is restored.
Thank you for your patience.
Copernicus User Support team at ECMWF