It is possible that your API token is no longer valid. To to your REDCap instance and request a new API token. You should get a new token immediatly. Replace the old tokem with your new token in the .env file. Try to log in again.
Please, report any issues or feeb-back by opening a GitHub issue, or getting in touch at gonzalo.garcia[at]sjd.es.
babylab-redcap is distributed under the terms of the MIT license.