[Plugin: WP Super Cache] 301 Problem

Hi,
I have installed WP Super Cache to my site :

https://www.braygames.com

but after installing I was checking site speed in

https://gtmetrix.com/

Analysis Error

The page returned an error: 500 Internal Server Error

When I was adding my site to google page speed service :

We have detected a 301 redirect from https://www.braygames.com to braygames.com.

!!!!

I want to know why its redirected ?? is there problems will be with search engines ?

Thanks !

https://www.ads-software.com/plugins/wp-super-cache/