title: PhpMyAdmin is suddenly showing errors
body: <p>I hope you're doing well.
  Last week (friday) phpmyadmin was working just fine, but when I tried to work with it today it shows me some errors and doesn't show databases etc.
  I'm workin with xampp on windows 7 (it's not my pc ...)</p>
  
  <p>Here is the error:</p>
  
  <blockquote>
    <p>Fatal error: Uncaught TypeError: Argument 2 passed to
    PhpMyAdmin\Core::arrayWrite() must be of the type array, null given,
    called in C:\xampp\phpMyAdmin\libraries\classes\Config.php on line
    1049 and defined in C:\xampp\phpMyAdmin\libraries\classes\Core.php:677
    Stack trace: #0
    C:\xampp\phpMyAdmin\libraries\classes\Config.php(1049):
    PhpMyAdmin\Core::arrayWrite('lang', NULL, 'fr') #1
    C:\xampp\phpMyAdmin\libraries\classes\Config.php(996):
    PhpMyAdmin\Config->setUserValue(NULL, 'lang', 'fr', 'en') #2
    C:\xampp\phpMyAdmin\libraries\common.inc.php(453):
    PhpMyAdmin\Config->loadUserPreferences() #3
    C:\xampp\phpMyAdmin\index.php(27):
    require_once('C:\xampp\phpMyA...') #4 {main} thrown in
    C:\xampp\phpMyAdmin\libraries\classes\Core.php on line 677</p>
  </blockquote>
  
  <p>Thank you for your interest.
  Have a good day.</p>