IntegrationHub flow is failing an JDBC step and throwing error "Could not connect to the specified database. Please check the logs for more detail."
Credential was not passed when flow was executed.
Navigate to flow execution, JDBC step [JDBC] > Integration Metadata > Credential field was empty
Pass the credentials while executing the flow & that should fix the issue.
If this solution didn't fix the issue, then refer to below related knowledge article for other possible causes.