При обращении к классу возникает ошибка php

<?php 
require 'vendor/autoload.php'; 
$phpWord = new \PhpOffice\PhpWord\PhpWord(); 
print_r($phpWord); 
$PhpWord -> setDefaultFontName('Temes New Roman'); 
$PhpWord -> setDefaultSize(14); 
 
$properties = $PhpWord->getDocInfo(); 
$properties -> setCreator('My Name'); 
$properties -> setCompany('My factory'); 
$properties -> setTitle('My title'); 
$properties -> setDescription('My Description'); 
$properties -> setCategory('My Category'); 
$properties -> LastModified('MyName'); 
$properties -> setCreated('mktime(0,0,0,3,14,2014)'); 
$properties -> setModified(mktime(0,0,0,3,14,2014)); 
$properties -> setSubject('MySubject'); 
$properties -> setKeyWords('my, key, word'); 
 
$sectionStyle= array( 
         'orientation' => 'landscape', 
         'marginTop' =>PhpOffice\PhpWord\Shared\Converter::pixelToTwip(150), 
         'marginLeft' => 600, 
         'marginRight' => 600, 
         'ColsNuw' => 1, 
         'pageNumbering Start' => 1, 
         'borderBottomSize' =>100, 
         'borderBottomColor'=> 'COCOCO' 
 
); 
 
$section = $PhpWord->AddSection($sectionStyle); 
$Text="Здесь будет всё чики-пуки"; 
$section -> AddText(htmlSpecialChars($Text), 
                                   array('Name=>', 'Arial', 'Size'=>36, 
                                   'color'=>'0,75, 776', Bold=>true, 
                                   'Italic'=>TRUE ), 
 
                                   array('align' => 'right', 'SpaceBefore' =>5000 
 
                                   )); 
$ObjWriter=\PhpOffice\PhpWord\IoFactory::createWriter($PhpWord, 'Word2007'); 
 
 
 
 
$ObjWriter->Save('doc.docx');