Paid memberships pro login button

When we make a page restricted with the pmpro and we are not logged in we get a good message that we need to login or register. However the links in that buttons is going to the wp-admin backend route. That is the place we do not want to meet customers. Which file do we need to alter? When we use “inspect element” in chrome we can simply replace the linktxt with the official login link and that works fine. That works only for the time of the websession off course. Which file do we need to alter login and register? I gues it must be somewhere in pmpro. (pmpro has a page redirects setting but log in is not one of them)