# cds HTTP error \[500 Internal Server Error\]

**URL:** <https://forum.ecmwf.int/t/cds-http-error-500-internal-server-error/10712>\
**Category:** API\
**Created:** [9 January 2025 22:02 UTC](https://forum.ecmwf.int/t/cds-http-error-500-internal-server-error/10712 "2025-01-09T22:02:25Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Ruoji\_Wang](https://forum.ecmwf.int/letter_avatar_proxy/v4/letter/r/2acd7d/32.png) [@Ruoji\_Wang](https://forum.ecmwf.int/u/Ruoji_Wang)\
**Post date:** [9 January 2025 22:02 UTC](https://forum.ecmwf.int/t/cds-http-error-500-internal-server-error/10712/1 "2025-01-09T22:02:25Z")

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I’m downloading data on single\_levels. today it returns HTTP error [500 Internal Server Error] and no data can be download. What’s wrong? do I need to do something?