Requirements Of Yii When Uploading Into A Server

I have a server (elgg), I wanted to embed Yii into it. I have "localhost/webapp/?r=price/index" it works fine for priceController and other Controllers are working, but my SiteController is not. May I know why? or do you have any idea why?

How did you access the site controller ?

the server already runs the controller. do you mean the path?

Please provide the url address that doesn’t work…