As this is custom code, I wouldn't be able to tell how exactly it should be installed. I would highly suggest you contact the support of your code (XpressEngine) developers and get the instructions for how to install it properly :)
Then you should be able to install it well here, as the system meets all the requirements from what I've found :)
라고 웹 호스팅 사이트에서 말합니다. 닷홈같은 경우 "호스팅계정아이디.dothome.co.kr/xe "로 접속하면 되는데,
hostinger는 저렇게 말합니다. xe 설치? 연결? 어떻게 하는건가요..