Can’t log into codex tools

Hello.
I have a www.remarpro.com account and I can log in fine there and access these forums, but on the codex page I’m not shown as logged in. And when I try to log into “codex tools” I’m told my account login is invalid. When I return to www.remarpro.com to reset my password, I’m still shown as logged in. I’ve tried clearing out the cache and cookies but the problem persists.

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