I am using the Theme My Login plugin and Login Security Solution. Both are up-to-date. When I enter a valid username and password, no problem, but when I make a mistake on entering the username and/or password, I get the following: Fatal error: Call to a member function get_error_codes() on a non-object in .../wp-content/plugins/login-security-solution/login-security-solution.php on line 512.
Interestingly,when I use the wordpress login for the same site, and I put in a bad name/password, I get the invalid username or password message which is okay.
I found this link that says that maybe a misspelling in a class, but don't know if provides a clue on what's going on: http://www.wallpaperama.com/forums/fatal-error-call-to-a-member-function-call-on-a-non-object-in-remote-php-on-line-140-t1761.html
Any help is welcomed so I can use this combination on a number of sites. Thanks!