Fatal error: Uncaught Error: Interface "SessionHandlerInterface" not found in /home/www/valgusmaailm.ee/vendor/symfony/symfony/src/Symfony/Component/HttpFoundation/Session/Storage/Handler/AbstractSessionHandler.php:23 Stack trace: #0 /home/www/valgusmaailm.ee/vendor/composer/ClassLoader.php(578): include() #1 /home/www/valgusmaailm.ee/vendor/composer/ClassLoader.php(432): Composer\Autoload\ClassLoader::Composer\Autoload\{closure}() #2 /home/www/valgusmaailm.ee/vendor/symfony/symfony/src/Symfony/Component/HttpFoundation/Session/Storage/Handler/StrictSessionHandler.php(19): Composer\Autoload\ClassLoader->loadClass() #3 /home/www/valgusmaailm.ee/vendor/composer/ClassLoader.php(578): include('...') #4 /home/www/valgusmaailm.ee/vendor/composer/ClassLoader.php(432): Composer\Autoload\ClassLoader::Composer\Autoload\{closure}() #5 [internal function]: Composer\Autoload\ClassLoader->loadClass() #6 /home/www/valgusmaailm.ee/vendor/symfony/symfony/src/Symfony/Component/HttpFoundation/Session/Storage/NativeSessionStorage.php(22): class_exists() #7 /home/www/valgusmaailm.ee/vendor/composer/ClassLoader.php(578): include('...') #8 /home/www/valgusmaailm.ee/vendor/composer/ClassLoader.php(432): Composer\Autoload\ClassLoader::Composer\Autoload\{closure}() #9 /home/www/valgusmaailm.ee/vendor/symfony/symfony/src/Symfony/Component/HttpFoundation/Session/Storage/PhpBridgeSessionStorage.php(21): Composer\Autoload\ClassLoader->loadClass() #10 /home/www/valgusmaailm.ee/vendor/composer/ClassLoader.php(578): include('...') #11 /home/www/valgusmaailm.ee/vendor/composer/ClassLoader.php(432): Composer\Autoload\ClassLoader::Composer\Autoload\{closure}() #12 /home/www/valgusmaailm.ee/src/Core/Session/SessionHandler.php(120): Composer\Autoload\ClassLoader->loadClass() #13 /home/www/valgusmaailm.ee/config/config.inc.php(189): PrestaShop\PrestaShop\Core\Session\SessionHandler->init() #14 /home/www/valgusmaailm.ee/index.php(27): require('...') #15 {main} thrown in /home/www/valgusmaailm.ee/vendor/symfony/symfony/src/Symfony/Component/HttpFoundation/Session/Storage/Handler/AbstractSessionHandler.php on line 23