I have a problem with Membersarea plugin. I followed by steps in 'Short Documentation Plugin MembersArea' and when I try to log in using
<?php echo membersarea_login('the_login_page');?> it works only in case when 'the_login_page' relates to the page which doesn't exist on my web page (here I keep being login and if I want to logout, I should go first to the page which doesn't exist...). It is wird. On the other hand, when 'the_login_page' is 'null', it is not working well (being login is not visible anymore after changing pages). But when 'the_login_page' is one of pages on my web, then I am redirecting to this page and cannot login...

I will be grateful for some hints how to solve it.
Best regards,
Kowalski