After removing the existing connector and rebooting the manager the application shows double connectors with the other one in closing state(Removed connector).
The connector seems to be stuck in the removal process
SO 4.2 CUx
You can remove the stuck connector manually from the database. First, find the connector that is having this problem by executing the following command:
select * from ConnectorConfiguration;
Then take the connector ID of the failed connector, and use it in another command:
delete from ConnectorConfiguration where ConnectorID = <Connector Id for the same connector where MDRName is 'ConnectorService'>
Restart SOI services.