Fatal error: Uncaught InvalidArgumentException: Unable to unserialize value, string is corrupted. in /var/www/magento2/vendor/magento/framework/Serialize/Serializer/Serialize.php:38 Stack trace: #0 [internal function]: Magento\Framework\Serialize\Serializer\Serialize->Magento\Framework\Serialize\Serializer\{closure}(8, 'unserialize(): ...', '/var/www/magent...', 42, Array) #1 /var/www/magento2/vendor/magento/framework/Serialize/Serializer/Serialize.php(42): unserialize('a:67:{s:5:"admi...', Array) #2 /var/www/magento2/vendor/magento/module-config/App/Config/Type/System.php(252): Magento\Framework\Serialize\Serializer\Serialize->unserialize('a:67:{s:5:"admi...') #3 /var/www/magento2/vendor/magento/framework/Cache/LockGuardedCacheLoader.php(69): Magento\Config\App\Config\Type\System->Magento\Config\App\Config\Type\{closure}() #4 /var/www/magento2/vendor/magento/module-config/App/Config/Type/System.php(261): Magento\Framework\Cache\LockGuardedCacheLoader->lockedLoadData('SYSTEM_CONFIG', Object(Closure), Object(Closure), Obje in /var/www/magento2/vendor/magento/framework/Serialize/Serializer/Serialize.php on line 38