After upgrade successfull message, customer shop is ok, but when i try to login on admin it brings me again to admin login, if i fail on password it tells me it's not ok (and reset password if i wanna), but can't accés admin page in any way. Login seems to be ok, but showns login page every time.
allready deleted all cookies on browser, also tried on different computer, and same result. Can't access to admin page, after login it brings again same screen to put username and password.
EDIT: sry, but didn't noticed before, there's also some PHP error;
Fatal error: Call to a member function get() on a non-object in /pathtoshop/opencart/admin/index.php on line 78