some Tank Auth error messages not displaying

[eluser]Kenneth Vogt[/eluser]
I just installed an authentication library for Codeigniter called Tank Auth (http://www.konyukhov.com/soft/tank_auth/) and I love it. I am having a strange problem however. The only error messages that display are "The X field is required." If I leave the password field blank, I will see "The Password field is required." But if the email and password do not match the database, the screen just refreshes with no error message. I added the following lines to ./application/libraries/Tank_auth.php just to be sure that the error was being captured:

Code:

96 $this->error = array('password' => 'auth_incorrect_password'); // this was already there
97 print_r($this->error);
98 die();

The result was:

Code:

Array ( [password] => auth_incorrect_password )

So we can see that the error is being set.

I have included the following line in ./application/config/autoload.php:

Code:

$autoload['language'] = array('tank_auth');

So what am I doing wrong?