Openlitespeed problem

Hello. when I change php version. Openlitespeed shuts down and the site shuts down. I have to turn on Openlitespeed again. What should I do?

Erore Msg:
2020-01-29 14:18:51.386447 [ERROR] HttpListener::start(): Can’t listen at address adminListener: Address already in use!
2020-01-29 14:18:51.386507 [ERROR] HttpServer::addListener(adminListener) failed to create new listener
2020-01-29 14:18:51.386518 [ERROR] [config:admin:listener:adminListener] failed to start listener on address 51.161.76.**:7788!
2020-01-29 14:18:51.386529 [ERROR] [config:admin:listener] No listener is available for admin virtual host!
2020-01-29 14:18:51.386558 [ERROR] Fatal error in configuration, exit!