postgressrcbackendreplication at master

ERROR: all replication slots are in use replication slot postgres When a logical replication slot is created, Postgres creates a snapshot of the current state of the database and records the consistent point from where replication slot postgres A replication slot is a PostgreSQL feature which ensures that a stream of changes stored in a WAL log file is replicated to the destination in the correct order

replication slot already exists A replication slot is a feature in PostgreSQL that ensures that the master server will retain the WAL logs that are needed by the replicas