Problem when sso authen

Hello,

I try to authen to get token via

https://stage.<my_comminuty>/auth/oauth2/authorize?client_id={client_id}&response_type=code&redirect_uri={callback_url}

but I  got error 500 about component.content.studio-title (content).  and try

https://<my_comminuty>/auth/oauth2/authorize?client_id={client_id}&response_type=code&redirect_uri={callback_url}

It's work fine. See configuration in admin page, look similar. I don't know what's going on. please suggest.

Thank you in advanced.