Whilte label error

I followed above reference and tried to run it but when i hit localhost:8080 on browser it gives
Whitelabel Error Page
Anyone can help here ?

Is there anything in the logs that indicate there could be a problem? Like another program using the same port?

In your code while explaining, “camunda-engine-dmn-bom” this was not part of pom.xml but after adding this as dependency, my issue got resolved.