phpMyAdmin欢迎页面中没有登录表单

Question

I've installed phpMyAdmin along side apache 2.4 and php 5.6, without any trouble except when I hit phpMyAdmin page with the logo and login form, the form is not diaplayed, not even in the html source code and no error displayed (php error, console or network), I modified the phpMyAdmin settings :

/* Server: localhost [1] */
$i++;
$cfg['Servers'][$i]['verbose'] = 'localhost';
$cfg['Servers'][$i]['host'] = 'localhost';
$cfg['Servers'][$i]['port'] = '';
$cfg['Servers'][$i]['socket'] = '';
$cfg['Servers'][$i]['connect_type'] = 'tcp';
$cfg['Servers'][$i]['auth_type'] = 'cookie';
$cfg['Servers'][$i]['AllowNoPassword'] = false;
$cfg['DefaultLang'] = 'en-utf-8';
$cfg['ServerDefault'] = 1;
$cfg['UploadDir'] = '';
$cfg['SaveDir'] = '';

Without any success, the only things that pop up is this error in the error-php.log :

[09-Apr-2016 16:29:10 UTC] PHP Fatal error:  Class       'PMA\libraries\PMA_Message' not found in D:\jean-philippe\Documents\www\phpMyAdmin\libraries\Message.php on line 586

Could this be the root of the problem ?

Thanks for yours further responses.

phpMyAdmin welcome page

phpMyAdmin seeings and php error log