An Astra DB Serverless database was stuck in HIBERNATED state. astra db resume (Astra CLI v1.1.1) failed with: An unexpected error occurred during the execution of the command (IOException): HTTP/1.1 header parser received no bytes, caused by java.io.EOFException: EOF reached while reading. The same database also failed to resume through the Astra Portal, and a direct Data API request returned curl: (52) Empty reply from server. The token was valid — the CLI could fetch org info and database status fine.