1- Tomcat service has been stopped at 31-Jul-2020 10:43:38 and due to which the AE application has been stopped  

Error in logs: 31-Jul-2020 10:43:38.887 SEVERE [main] org.apache.catalina.util.LifecycleBase.handleSubClassException Failed to initialize component [Connector[HTTP/1.1-443]] org.apache.catalina.LifecycleException: Protocol handler initialization failed  at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:491) Caused by: java.net.BindException: Address already in use: bind

The tomcat service has been stopped because of the unavailability of the required port(443). Port 443 on which tomcat service runs is busy or already been used by other components.

Your AutomationEdge server runs on port 443 and if this port has been already consumed then the AE server will go down.

So please make sure that port 443 should always be reserved for the AE server and this port should not be used by any other component.