[Friendsandcash]

Hi again, it is fixed now, I can log in and all is working fine.
But now we are at the beginning because:
1) The text “ERROR: The username or password you entered is incorrect. Lost your password?” remains untranslated
2) I don´t know how to get it translated, since in the po/mo file doesn´t appear. I only know that it is stated in the user.php file, but this file shouldn´t be modified, so??

[Friendsandcash]

Thanks for your quick reply, danhp; I founded it and modified the text; however, the issue is much bigger now; after changing the text “Lost your Password” by ¿Has perdido tu contraseña?” (which is the spanish translation), I can´t log in. The system returns several error messages like this:
“Warning: call_user_func_array() [function.call-user-func-array]: First argument is expected to be a valid callback, ‘wp_validate_logged_in_cookie’ was given in /home2/esaguado/public_html/wp-includes/plugin.php on line 192”
I have replaced the hole file by the local one, which hadn´t been modified, but the result is the same: It is not possible to log in.
I´m lost, do you have any idea on how to solve this BIG PROBLEM?

[Friendsandcash]

Yes, it is definetly a theme/plugin conflict, since it works changing to theme Twenty Thirteen. So, is there any way to solve it?