Users/members cannot log in to website


I have installed the Membership plugin on a client's site.

Everything was working fine and now the client states that users cannot log in. When I went to try to access the site via or I get redirected to the page.

I was finally able to access the admin log in page via a url that was saved in my browser

I need help getting the log in working for both authors/owners of the site and also members as well. Thank you.