EODAG 3 has changed the parameter name designating where products are downloaded

Since v3.0.0, eodag used output_dir instead of outputs_prefix to indicate where products shall be downloaded.

See

• https://eodag.readthedocs.io/en/stable/changelog.html#warning-breaking-changes-since-last-stable-v2-12-1
• https://github.com/CS-SI/eodag/pull/1279