Collecting APM Data

Hello does anyknow why I cant see anythong in the APS windows once I did all the stept in the lab, I only can see the last one, the react but I cant see address-finder,java,node js.... I n fact I cant start the spring app in the server due to this issue :


APPLICATION FAILED TO START


Description:

The Tomcat connector configured to listen on port 80 failed to start. The port may already be in use or the connector may be misconfigured.

Action:

Verify the connector's configuration, identify and stop any process that's listening on port 80, or configure this application to listen on another port.

Please help