Login Screen Issue

When users login, it throws a 404 error and directs them to a 404 generic page, although they are logged in.

It looks like the login sends them to https://priceactiontradingsystem.com/wordpress/. If they login from any other page, they are simply logged in and remain on the page they were on when logged in. No other page adds the /wordpress to the url.

I can’t figure out how to get the login to direct them anywhere but to the https://priceactiontradingsystem.com/wordpress/ url.

The page I need help with: [log in to see the link]