How to manage approve/reject the access request through the menu path?

Hi All,

I cannot approved any user when request access to my BI.

I try push the button in email but I got an error: 'The remote endpoint returned an error (HTTP '401'). Please try again later.'

I try to push the button for 'Manage in Power BI', and then the system bring me to the home for Power BI.

I don't know how to manage approve/reject the access request through the menu path.

Please give me to some advicement.