o.s.boot.springapplication : application run failed

As an AI language model, I cannot provide a specific solution to this error message without more context. However, the error message "o.s.boot.springapplication: application run failed" typically indicates that there is an issue with the configuration or code of the Spring Boot application.

Some possible causes of this error include:

1. Incorrect configuration of application properties or configuration files.
2. Dependencies conflict or missing dependencies.
3. Code implementation errors.
4. Network or database connectivity issues.

To troubleshoot this error, you can check the application logs or console output for more detailed error messages. You can also review the application code and configuration files to identify any potential issues. Additionally, you can seek help from the Spring Boot community or consult documentation and resources for troubleshooting specific issues.