The problem of entering the admin of open cards 1.5.4.1

1.I enter the login and password, click " login" in the address bar added
/admin/index.php?route=common/home&token=3f844c31eceec324fbf49d1186e229ee
But the admin entry page is unchanged.
When you click again, "enter" - throws a site with the inscription "The requested page is not found! ".
2. The cart stopped working "Your basket is empty!"