CakePHP Upload Multiple Files Error

Notice (8): Array to string conversion [CORE\src\Database\Statement\PDOStatement.php, line 72]
Code Context
            list($value, $type) = $this->cast($value, $type);
        }
        $this->_statement->bindValue($column, $value, $type);
$column = 'c2'
$value = [
    (int) 0 => [
        'name' => 'vision.gif',
        'type' => 'image/gif',
        'tmp_name' => 'D:\wamp\tmp\php72C9.tmp',
        'error' => (int) 0,
        'size' => (int) 24142
    ],
    (int) 1 => [
        'name' => 'wyndham.concorde.01.jpg',
        'type' => 'image/jpeg',
        'tmp_name' => 'D:\wamp\tmp\php72CA.tmp',
        'error' => (int) 0,
        'size' => (int) 177040
    ]
]
$type = (int) 2
PDOStatement::bindValue() - [internal], line ??
Cake\Database\Statement\PDOStatement::bindValue() - CORE\src\Database\Statement\PDOStatement.php, line 72
Cake\Database\Statement\StatementDecorator::bindValue() - CORE\src\Database\Statement\StatementDecorator.php, line 105
Cake\Database\Log\LoggingStatement::bindValue() - CORE\src\Database\Log\LoggingStatement.php, line 97
Cake\Database\Statement\StatementDecorator::bind() - CORE\src\Database\Statement\StatementDecorator.php, line 290
Cake\Database\ValueBinder::attachTo() - CORE\src\Database\ValueBinder.php, line 125
Cake\Database\Connection::run() - CORE\src\Database\Connection.php, line 271
Cake\Database\Query::execute() - CORE\src\Database\Query.php, line 188
Cake\ORM\Table::_insert() - CORE\src\ORM\Table.php, line 1544
Cake\ORM\Table::_processSave() - CORE\src\ORM\Table.php, line 1460
Cake\ORM\Table::Cake\ORM\{closure}() - CORE\src\ORM\Table.php, line 1391
Cake\Database\Connection::transactional() - CORE\src\Database\Connection.php, line 559
Cake\ORM\Table::save() - CORE\src\ORM\Table.php, line 1392
App\Controller\UsersController::add() - APP/Controller\UsersController.php, line 78
Cake\Controller\Controller::invokeAction() - CORE\src\Controller\Controller.php, line 429
Cake\Routing\Dispatcher::_invoke() - CORE\src\Routing\Dispatcher.php, line 114
Notice (8): Array to string conversion [CORE\src\Database\Log\QueryLogger.php, line 79]
Code Context
        }

        return preg_replace($keys, $params, $query->query, $limit);
$query = object(Cake\Database\Log\LoggedQuery) {
    query => 'INSERT INTO users (email, password, photo, created, modified) VALUES (:c0, :c1, :c2, :c3, :c4)'
    took => (float) 1
    params => [
        'c0' => 'masdasd@mail.com',
        'c1' => '$2y$10$7W/Fpxdbph0NcGwra9A8k.g4kx6EVIECXKv8cdjJXL2Xyf.Atp1RW',
        'c2' => [
            [maximum depth reached]
        ],
        'c3' => '2016-05-23 14:54:59',
        'c4' => '2016-05-23 14:54:59'
    ]
    numRows => (int) 1
    error => null
}
$params = [
    'c0' => ''masdasd@mail.com'',
    'c1' => ''$2y$10$7W/Fpxdbph0NcGwra9A8k.g4kx6EVIECXKv8cdjJXL2Xyf.Atp1RW'',
    'c2' => [
        (int) 0 => [
            'name' => 'vision.gif',
            'type' => 'image/gif',
            'tmp_name' => 'D:\wamp\tmp\php72C9.tmp',
            'error' => (int) 0,
            'size' => (int) 24142
        ],
        (int) 1 => [
            'name' => 'wyndham.concorde.01.jpg',
            'type' => 'image/jpeg',
            'tmp_name' => 'D:\wamp\tmp\php72CA.tmp',
            'error' => (int) 0,
            'size' => (int) 177040
        ]
    ],
    'c3' => ''2016-05-23 14:54:59'',
    'c4' => ''2016-05-23 14:54:59''
]
$keys = [
    (int) 0 => '/:c0\b/',
    (int) 1 => '/:c1\b/',
    (int) 2 => '/:c2\b/',
    (int) 3 => '/:c3\b/',
    (int) 4 => '/:c4\b/'
]
$limit = (int) -1
$key = 'c4'
$param = ''2016-05-23 14:54:59''
preg_replace - [internal], line ??
Cake\Database\Log\QueryLogger::_interpolate() - CORE\src\Database\Log\QueryLogger.php, line 79
DebugKit\Database\Log\DebugLog::log() - ROOT\vendor\cakephp\debug_kit\src\Database\Log\DebugLog.php, line 128
Cake\Database\Log\LoggingStatement::_log() - CORE\src\Database\Log\LoggingStatement.php, line 83
Cake\Database\Log\LoggingStatement::execute() - CORE\src\Database\Log\LoggingStatement.php, line 65
Cake\Database\Connection::run() - CORE\src\Database\Connection.php, line 272
Cake\Database\Query::execute() - CORE\src\Database\Query.php, line 188
Cake\ORM\Table::_insert() - CORE\src\ORM\Table.php, line 1544
Cake\ORM\Table::_processSave() - CORE\src\ORM\Table.php, line 1460
Cake\ORM\Table::Cake\ORM\{closure}() - CORE\src\ORM\Table.php, line 1391
Cake\Database\Connection::transactional() - CORE\src\Database\Connection.php, line 559
Cake\ORM\Table::save() - CORE\src\ORM\Table.php, line 1392
App\Controller\UsersController::add() - APP/Controller\UsersController.php, line 78
Cake\Controller\Controller::invokeAction() - CORE\src\Controller\Controller.php, line 429
Cake\Routing\Dispatcher::_invoke() - CORE\src\Routing\Dispatcher.php, line 114
Cake\Routing\Dispatcher::dispatch() - CORE\src\Routing\Dispatcher.php, line 87