ParseError: syntax error, unexpected 'throw' (T_THROW) in /srv/www/polysan.com.pl/vendor/magento/framework/File/Uploader.php:261
Stack trace:
#0 /srv/www/polysan.com.pl/vendor/composer/ClassLoader.php(344): Composer\Autoload\includeFile()
#1 [internal function]: Composer\Autoload\ClassLoader->loadClass()
#2 /srv/www/polysan.com.pl/vendor/magento/framework/Api/Uploader.php(12): spl_autoload_call()
#3 /srv/www/polysan.com.pl/vendor/composer/ClassLoader.php(476): include('/srv/www/polysa...')
#4 /srv/www/polysan.com.pl/vendor/composer/ClassLoader.php(344): Composer\Autoload\includeFile()
#5 [internal function]: Composer\Autoload\ClassLoader->loadClass()
#6 /srv/www/polysan.com.pl/generated/code/Magento/Framework/Api/Uploader/Interceptor.php(7): spl_autoload_call()
#7 /srv/www/polysan.com.pl/vendor/composer/ClassLoader.php(476): include('/srv/www/polysa...')
#8 /srv/www/polysan.com.pl/vendor/composer/ClassLoader.php(344): Composer\Autoload\includeFile()
#9 [internal function]: Composer\Autoload\ClassLoader->loadClass()
#10 [internal function]: spl_autoload_call()
#11 /srv/www/polysan.com.pl/vendor/magento/framework/Code/Reader/ClassReader.php(24): ReflectionClass->__construct()
#12 /srv/www/polysan.com.pl/vendor/magento/framework/ObjectManager/Definition/Runtime.php(54): Magento\Framework\Code\Reader\ClassReader->getConstructor()
#13 /srv/www/polysan.com.pl/vendor/magento/framework/ObjectManager/Factory/Compiled.php(100): Magento\Framework\ObjectManager\Definition\Runtime->getParameters()
#14 /srv/www/polysan.com.pl/vendor/magento/framework/ObjectManager/Factory/Compiled.php(150): Magento\Framework\ObjectManager\Factory\Compiled->create()
#15 /srv/www/polysan.com.pl/vendor/magento/framework/ObjectManager/Factory/Compiled.php(79): Magento\Framework\ObjectManager\Factory\Compiled->get()
#16 /srv/www/polysan.com.pl/vendor/magento/framework/ObjectManager/Factory/Compiled.php(150): Magento\Framework\ObjectManager\Factory\Compiled->create()
#17 /srv/www/polysan.com.pl/vendor/magento/framework/ObjectManager/Factory/Compiled.php(79): Magento\Framework\ObjectManager\Factory\Compiled->get()
#18 /srv/www/polysan.com.pl/vendor/magento/framework/ObjectManager/Factory/Compiled.php(150): Magento\Framework\ObjectManager\Factory\Compiled->create()
#19 /srv/www/polysan.com.pl/vendor/magento/framework/ObjectManager/Factory/Compiled.php(79): Magento\Framework\ObjectManager\Factory\Compiled->get()
#20 /srv/www/polysan.com.pl/vendor/magento/framework/ObjectManager/Factory/Compiled.php(150): Magento\Framework\ObjectManager\Factory\Compiled->create()
#21 /srv/www/polysan.com.pl/vendor/magento/framework/ObjectManager/Factory/Compiled.php(79): Magento\Framework\ObjectManager\Factory\Compiled->get()
#22 /srv/www/polysan.com.pl/vendor/magento/framework/ObjectManager/Factory/Compiled.php(150): Magento\Framework\ObjectManager\Factory\Compiled->create()
#23 /srv/www/polysan.com.pl/vendor/magento/framework/ObjectManager/Factory/Compiled.php(79): Magento\Framework\ObjectManager\Factory\Compiled->get()
#24 /srv/www/polysan.com.pl/vendor/magento/framework/ObjectManager/ObjectManager.php(70): Magento\Framework\ObjectManager\Factory\Compiled->create()
#25 /srv/www/polysan.com.pl/vendor/magento/framework/Interception/PluginList/PluginList.php(174): Magento\Framework\ObjectManager\ObjectManager->get()
#26 /srv/www/polysan.com.pl/vendor/magento/framework/Interception/Interceptor.php(182): Magento\Framework\Interception\PluginList\PluginList->getPlugin()
#27 /srv/www/polysan.com.pl/vendor/magento/framework/Interception/Interceptor.php(216): Magento\Framework\App\Http\Context\Interceptor->Magento\Framework\Interception\{closure}()
#28 /srv/www/polysan.com.pl/generated/code/Magento/Framework/App/Http/Context/Interceptor.php(23): Magento\Framework\App\Http\Context\Interceptor->___callPlugins()
#29 /srv/www/polysan.com.pl/vendor/magento/framework/App/PageCache/Identifier.php(57): Magento\Framework\App\Http\Context\Interceptor->getVaryString()
#30 /srv/www/polysan.com.pl/vendor/magento/framework/Interception/Interceptor.php(60): Magento\Framework\App\PageCache\Identifier->getValue()
#31 /srv/www/polysan.com.pl/vendor/magento/framework/Interception/Interceptor.php(201): Magento\Framework\App\PageCache\Identifier\Interceptor->___callParent()
#32 /srv/www/polysan.com.pl/vendor/magento/framework/Interception/Interceptor.php(216): Magento\Framework\App\PageCache\Identifier\Interceptor->Magento\Framework\Interception\{closure}()
#33 /srv/www/polysan.com.pl/generated/code/Magento/Framework/App/PageCache/Identifier/Interceptor.php(23): Magento\Framework\App\PageCache\Identifier\Interceptor->___callPlugins()
#34 /srv/www/polysan.com.pl/vendor/magento/framework/App/PageCache/Kernel.php(112): Magento\Framework\App\PageCache\Identifier\Interceptor->getValue()
#35 /srv/www/polysan.com.pl/vendor/magento/module-page-cache/Model/App/FrontController/BuiltinPlugin.php(73): Magento\Framework\App\PageCache\Kernel->load()
#36 /srv/www/polysan.com.pl/vendor/magento/framework/Interception/Interceptor.php(198): Magento\PageCache\Model\App\FrontController\BuiltinPlugin->aroundDispatch()
#37 /srv/www/polysan.com.pl/vendor/magento/framework/Interception/Interceptor.php(216): Magento\Framework\App\FrontController\Interceptor->Magento\Framework\Interception\{closure}()
#38 /srv/www/polysan.com.pl/generated/code/Magento/Framework/App/FrontController/Interceptor.php(23): Magento\Framework\App\FrontController\Interceptor->___callPlugins()
#39 /srv/www/polysan.com.pl/vendor/magento/framework/App/Http.php(116): Magento\Framework\App\FrontController\Interceptor->dispatch()
#40 /srv/www/polysan.com.pl/vendor/magento/framework/App/Bootstrap.php(263): Magento\Framework\App\Http->launch()
#41 /srv/www/polysan.com.pl/pub/index.php(30): Magento\Framework\App\Bootstrap->run()
#42 {main}