I would guess you are having a problem with your “Theme My Login” plugin. or possibly a conflict between that and your “Paid Membersips Pro” plugin. I will assume that everything was working in the past, did you just update one of your plugins or your theme?
I notice that your /wp-admin seems to be disabled also. You are on godaddy so are you able to access the site through your cpanel? If you can try disabling your “Theme my Login” plugin and see if the front end or /wp-admin works.
Here are 3 plugins you might want to take a look at. I use all 3 on one of my sites, they seem to play well together. 1 suggestion, create a clone development site and try new things there, then apply what works on the live site.
https://wordpress.org/plugins/erident-custom-login-and-dashboard/
https://wordpress.org/plugins/contexture-page-security/
https://wordpress.org/plugins/peters-login-redirect/
