I have seen that I was not the only one with this problem. I have solved it adding to wp-config.php

@ini_set('display_errors',0);
define('WP_DEBUG_DISPLAY', false);

Well, I was too fast. The registration form worked ok, but the forms for uploading content have the same problem from time to time. Well, If I get to know what it’s going on I will post it here.

Hello,

I have reinstalled the plugin and seems to work now! Thank you for your support. If the problem arises again I will contact you.

Anyway, it is happening to me in ALL forms, but in the content forms it only happens sometimes. Why? I don’t know…

Thank you for your response. WP_DEBUG is already FALSE in wp_config.
Yes, I have changed wp-user-frontend-pro/class/frontend-form-profile.php in order to check if the email address sent is valid. What PHP error are you seeing and where? If I put WP_DEBUG to true I get these errors from the plugin, but none of them seems to be related with what I have changed:
Declaration of WPUF_Frontend_Form_Profile::submit_button() should be compatible with WPUF_Render_Form::submit_button($form_id, $form_settings, $post_id)
Declaration of WPUF_Walker_Category_Multi::start_el() should be compatible with Walker::start_el(&$output, $object, $depth = 0, $args = Array, $current_object_id = 0)
Declaration of WPUF_Walker_Category_Checklist::start_lvl() should be compatible with Walker::start_lvl(&$output, $depth = 0, $args = Array)
Declaration of WPUF_Walker_Category_Checklist::end_lvl() should be compatible with Walker::end_lvl(&$output, $depth = 0, $args = Array)
Declaration of WPUF_Walker_Category_Checklist::start_el() should be compatible with Walker::start_el(&$output, $object, $depth = 0, $args = Array, $current_object_id = 0)
Declaration of WPUF_Walker_Category_Checklist::end_el() should be compatible with Walker::end_el(&$output, $object, $depth = 0, $args = Array)

No, sorry. I changed the Registration form to Gravity Forms until I find why it doesn’t work. Are you going to have a look at it? I have changed it back to your plugin for a while so that you can check it. Thanks a lot for your support.

Thank you. Cannot find what the problem is. It happens also when uploading content, but not always. Content is sent, user is also registered, but the spinning wheel keeps rolling and the user is not redirected. That’s a pity as I really like this plugin. Neither Chrome Tools nor Firebug show any javascript error.

Ok, thanks a lot. So If I want all posts plus a custom post type I have to add two shortcodes, one for each, that’s correct?

Thank you for your response. It works ok in desktop browsers, but not in an iPad. If I register using the iPad or iPhone it doesn’t check the email address.