I`ve got a specyfic problem. When the container is running in Pods, the application contained in it works correctly, while in kubernetes the status is displayed - Error. In Events there are the following problems:

Readiness probe failed: HTTP Probe failed with statuscode: 404
Liveness probe failed: HTTP Probe failed with statuscode: 404

The same errors are displayed in four containers with applications (Spring Boot). On the other hand, when I launch a container with a simple application (writing numbers from 0 to 10), in Kuberneres, the status is success. I'm just learning a Kubernetes, so I'd like to ask for help, which may be the cause of the problems?