Not fully compatiable with Logintoboggan, causes fatal error

By default, Email Registration and Logintoboggan will not work together.

An anonymous user who tries to view a page with the user login block will receive a fatal error on line 61.

This is caused by logintoboggan alterating the block to a text link by default leaving $form['#validate'] empty. This results in Unsupported operand types.

There are 2 ways to fix it.

1) Make the user change the user login block type from a link to standard (this is set within the logintoboggan module)

Or,

2) Alter the code in Email Registration from:

  case 'user_login_block':
    $form['name']['#title'] = t('E-mail');
    $form['#validate'] = array('email_registration_user_login_validate' => array()) + $form['#validate'];
    break;

To:

  case 'user_login_block':
    if (!empty($form['#validate'])) {
      $form['name']['#title'] = t('E-mail');
      $form['#validate'] = array('email_registration_user_login_validate' => array()) + $form['#validate'];
    }
    break;