Internal Server Error - /?restartApp

Hi,

I what scenario does below error is generated while accessing URL of project deployed on tomcat.
{"timestamp":1727155984008,"status":500,"error":"Internal Server Error","path":"/?restartApp"}


2024-09-24 12:40:20,202 ERROR i.j.u.e.DefaultExceptionHandler.handle:81 - [ajp-nio-0.0.0.0-8009-exec-97] Unhandled exception
java.lang.IllegalStateException: There is no root screen opened