RM, one thing I can see that's anomalous is that you have different passwords at the two sites. As a recovering computer nerd you're probably aware that responsible websites don't store anyone's actual password, so I can't see what either of those passwords is, but I can see they're not the same. Presumably you changed it at some stage and the alteration never made it across to the other site.
You should be able to reset your password to whatever you wish, provided you're still using the same email address. You can check that on one of your devices that's still signed in, by opening the player details. If you still use that email, look on a device that's not signed in, and you will see "Forgot your password? Click here" This will allow you to reset the password, and hopefully the change will be transmitted across to the other site.
If you no longer have access to your the email address in your Chi record, or if the above solution doesn't work for any other reason, let me know and I'll fix things up directly in the database.