HTTP ERROR 500 you have any idea how fix such error???? first time on live server and

yes and is the first
I think sthg with model loading
any hint
???
autoload.php
$autoload['model'] = array('Subject_model', 'Activity_model', 'Video_model', 'User_model');

and another problem I can Not import Database from localhost to USA SERVER VPS
NEITHER WITH DATA NOR WITHOUT DATA
HAS ANYTHING DO WITH regional usa europe DATE...? In other words only name of database created in cPanel... in phpmyadmin can Not import...well?

Error
SQL query:


--
-- Database: `yyy`
--

-- --------------------------------------------------------

--
-- Table structure for table `activities`
--

CREATE TABLE `activities` (
`id` int(11) NOT NULL,
`resource_id` int(11) DEFAULT NULL,
`type` varchar(255) DEFAULT NULL,
`action` varchar(255) DEFAULT NULL,
`user_id` int(11) DEFAULT NULL,
`message` varchar(255) DEFAULT NULL,
`created_date` datetime NOT NULL DEFAULT CURRENT_TIMESTAMP
) ENGINE=InnoDB DEFAULT CHARSET=latin1
MySQL said: Documentation

#1067 - Invalid default value for 'created_date'