# Integration Issues

- [How to resolve the "Failed to initialize pool: ONS configuration failed" error](/documentation/troubleshooting/integration-issues/failed-to-initialize-pool.md): Learn how to fix the error that occurs when a Java application cannot connect to an Oracle database.
- [How to resolve the "Invalid payload" error in API Integration](/documentation/troubleshooting/integration-issues/invalid-payload.md): Learn how to resolve the Invalid payload error in API Integration.
- [How to analyze the "Network error: Failed to fetch" in the Execution panel](/documentation/troubleshooting/integration-issues/failed-to-fetch-error.md): Learn how to investigate the issue when fetch failures occur in the Execution panel.
- [Timeout in the Pipeline Executor connector](/documentation/troubleshooting/integration-issues/timeout-pipeline-executor.md): Learn how to avoid this error in synchronous requests.
- [Why JSONPath is not recognized and how to resolve it](/documentation/troubleshooting/integration-issues/jsonpath-not-recognized.md): Learn more about the difference between the JSONPath expressions used in connectors and in the Execution panel of the Digibee Integration Platform.
- [How to handle @@DGB\_TRUNCATED@@](/documentation/troubleshooting/integration-issues/dgb-truncated.md): Understand the use of the @@DGB\_TRUNCATED@@ placeholder to optimize memory and handle large volume JSON responses.