Error for downloading ECMWF ERA5 reanalysis data

I got the error below for downloading ECMWF ERA5 reanalysis data.
Would you please let me know how to solve it?

“Due to the move of our Meteorological Archival and Retrieval System (MARS) to the new Data Centre in Bologna there will be no or degraded access to this dataset at times between November 2021 and April 2022.
Please visit our dedicated data centre migration pages for more information.
Thank you for your patience and support during this important move, which will allow exciting scientific developments and overall better service.”
ECMWF Reanalysis v5 | ECMWF