(SOLVED) 'INTRUSION' when registered users access to product page

[rogrod]

Hi all,

First at all, sorry my bad english.

I am configuring a pretashop shop, v 1.2.5.
I have some registred users to try the different taxes and shipping conigurations my shop allows.
Since two days ago, when I try to access product pages (and only products pages) with any registered user I got a blank screen with text "INTRUSIÓN' on it. These users works fine before. I have created new users but same problem.
However, I can access product pages and details with non registered users..

Also, having the "INTRUSIÓN" page in view, when I click on "end sesion" button, the product page automatically appears.

I can (with a non registered user) view any product, add it to shopping cart, and begin the order proccess. In this case, when I try to identify as registered user, I got the 'INTRUSION' page.

Please, any help would be appreciated.
Thanks.

I just find the text 'INTRUSIÓN' in error.php (es language). Id error is:
$_ERRORS['8657f8ff412ea8fc3135946769d64c13']

May be related to this line in categories.php?

if (!Validate::isLoadedObject($category)
$errors[] = Tools::displayError('category does not exist');
elseif (!$category->checkAccess(intval($cookie->id_customer)))
$errors[] = Tools::displayError('you do not have access to this category');
else
....

Thanks again.

[rogrod]

I still don´t know why, but i am fix it deleting manually all records of tables 'customer', 'customer_group', 'group' , 'group_lang' and creating them again from BO.