A plugin problem I think

[tbworld]

This is due to a modification not being compatible with PHP v5.4x series.

Look in your plugins and search by hook (you can click on "Hook Location" on the top menu/header bar). Search for "login_verify_success" hook: this is the hook located at "functions_login.php #204".

This should help you find the modification that is using that hook location. .

Then check the thread for the "mod" to see if someone has updated it or posted a fix.

Hope this helps