Caught exception: {"error":{"root_cause":[{"type":"no_shard_available_action_exception","reason":"No shard available for [get [task][task][53439]: routing [null]]"}],"type":"no_shard_available_action_exception","reason":"No shard available for [get [task][task][53439]: routing [null]]"},"status":503}
Sorry, this task does not seem to exist (anymore).