Getsimple (subdomain) and Wordpress problem

[lokoj]

Hi.
I want to try GetSimple, but I have a problem. I have a wordpress-domain.tld and I want to use GetSimple the subdomain get-simple.wordpress-domain.tld.

I want to install GS but when I type in the browser get-simple.wordpress-domain.tld/admin .. It automatically redirects me to wordpress-domain.tld/wp-admin - WordPress Admin. So I can not install GS.

Can you help me solve this problem?