1. Identify the source of the PostgreSQL 58030 error: [.code]SELECT * FROM pg_stat_activity WHERE state = 'idle in transaction';[.code]

2. Check the application code for any open transactions that are not being closed properly:

BEGIN;SELECT * FROM table_name;COMMIT

3. If the application code is not the source of the issue, check the PostgreSQL configuration settings:

SHOW max_connections

4. Increase the max_connections setting if necessary:

SELECT pg_last_error();

5. Restart the PostgreSQL server:

sudo service postgresql restart

6. Monitor the PostgreSQL server for any further occurrences of the PostgreSQL 58030 error:

SELECT * FROM pg_stat_activity WHERE state = 'idle in transaction'

7. As a best practice, use an automated database observability tool to monitor and fix the PostgreSQL 58030 in question. Automated database observability tools can provide real-time visibility into the performance and health of the PostgreSQL server, allowing for proactive monitoring and alerting of any potential issues. This can help to quickly identify and address any PostgreSQL 58030 errors before they become a major issue.