InvalidArgumentException: Unable to unserialize value. in /opt/bitnami/apps/magento/htdocs/vendor/magento/framework/Serialize/Serializer/Serialize.php:33 Stack trace: #0 /opt/bitnami/apps/magento/htdocs/vendor/magento/module-config/App/Config/Type/System.php(252): Magento\Framework\Serialize\Serializer\Serialize->unserialize('') #1 /opt/bitnami/apps/magento/htdocs/vendor/magento/framework/Cache/LockGuardedCacheLoader.php(69): Magento\Config\App\Config\Type\System->Magento\Config\App\Config\Type\{closure}() #2 /opt/bitnami/apps/magento/htdocs/vendor/magento/module-config/App/Config/Type/System.php(261): Magento\Framework\Cache\LockGuardedCacheLoader->lockedLoadData('SYSTEM_CONFIG', Object(Closure), Object(Closure), Object(Closure)) #3 /opt/bitnami/apps/magento/htdocs/vendor/magento/module-config/App/Config/Type/System.php(195): Magento\Config\App\Config\Type\System->loadDefaultScopeData('default') #4 /opt/bitnami/apps/magento/htdocs/vendor/magento/module-config/App/Config/Type/System.php(169): Magento\Config\App\Config\Type\System->getWithParts('default/newreli...') #5 /opt/bitnami/apps/magento/htdocs/vendor/magento/framework/App/Config.php(132): Magento\Config\App\Config\Type\System->get('default/newreli...') #6 /opt/bitnami/apps/magento/htdocs/vendor/magento/framework/App/Config.php(80): Magento\Framework\App\Config->get('system', 'default/newreli...') #7 /opt/bitnami/apps/magento/htdocs/vendor/magento/framework/App/Config.php(93): Magento\Framework\App\Config->getValue('newrelicreporti...', 'default', NULL) #8 /opt/bitnami/apps/magento/htdocs/vendor/magento/module-new-relic-reporting/Model/Config.php(94): Magento\Framework\App\Config->isSetFlag('newrelicreporti...') #9 /opt/bitnami/apps/magento/htdocs/vendor/magento/module-new-relic-reporting/Plugin/HttpPlugin.php(49): Magento\NewRelicReporting\Model\Config->isNewRelicEnabled() #10 /opt/bitnami/apps/magento/htdocs/vendor/magento/framework/Interception/Interceptor.php(121): Magento\NewRelicReporting\Plugin\HttpPlugin->beforeCatchException(Object(Magento\Framework\App\Http\Interceptor), Object(Magento\Framework\App\Bootstrap), Object(InvalidArgumentException)) #11 /opt/bitnami/apps/magento/htdocs/vendor/magento/framework/Interception/Interceptor.php(153): Magento\Framework\App\Http\Interceptor->Magento\Framework\Interception\{closure}(Object(Magento\Framework\App\Bootstrap), Object(InvalidArgumentException)) #12 /opt/bitnami/apps/magento/htdocs/generated/code/Magento/Framework/App/Http/Interceptor.php(39): Magento\Framework\App\Http\Interceptor->___callPlugins('catchException', Array, Array) #13 /opt/bitnami/apps/magento/htdocs/vendor/magento/framework/App/Bootstrap.php(267): Magento\Framework\App\Http\Interceptor->catchException(Object(Magento\Framework\App\Bootstrap), Object(InvalidArgumentException)) #14 /opt/bitnami/apps/magento/htdocs/index.php(39): Magento\Framework\App\Bootstrap->run(Object(Magento\Framework\App\Http\Interceptor)) #15 {main}