An Error Was Encountered

The URI you submitted has disallowed characters.

Call Trace

#0 D:\htdocs\system\core\Common.php(426): AK_Exceptions->show_error('An Error Was En...', 'The URI you sub...', 'error_general', 400)
#1 D:\htdocs\system\core\URI.php(328): show_error('The URI you sub...', 400)
#2 D:\htdocs\system\core\URI.php(175): CI_URI->filter_uri('contact&vendor_...')
#3 D:\htdocs\system\core\URI.php(137): CI_URI->_set_uri_string('information/con...')
#4 D:\htdocs\system\core\Common.php(196): CI_URI->__construct()
#5 D:\htdocs\system\core\CodeIgniter.php(301): load_class('URI', 'core')
#6 D:\htdocs\index.php(292): require_once('D:\\htdocs\\syste...')
#7 {main}