ERROR: replication slot "debezium" already exists

Root cause

An attempted slot creation found an existing name. Existing slots can be normal on restart; inspect ownership, plugin, database, saved offsets and competing connector instances before changing anything.

How to fix

1. Inspect pg_replication_slots and the connector’s slot.name, plugin.name, database and offsets. Stop an unintended competing reader before reconnecting.
2. Reuse a compatible retained slot when the connector’s documented resume path permits it. Slot deletion is a recovery decision, not the default response to this message.