Why am I seeing START_REPLICATION 042000000 TIMELINE 1

FATAL: could not start WAL streaming: ERROR: replication slot XXX start_replication slot slot or not You can specify the slot name of your choice, but if you choose not to it will default to a subscription name as slot name start replication slot postgres START_REPLICATION SLOT stolon_7063fb99 16AB000000 TIMELINE 1 T20:27:57Z appkeeper

surga 123 slot ** * START_REPLICATION SLOT slot_name LOGICAL XXXXXX * private String createStartLogicalQuery