UnexpectedValueException: The stream or file "/var/www/clients/client8/web13/web//var/log/debug.log" could not be opened in append mode: failed to open stream: Too many open files in system in /var/www/clients/client8/web13/web/vendor/monolog/monolog/src/Monolog/Handler/StreamHandler.php:110
Stack trace:
#0 /var/www/clients/client8/web13/web/vendor/magento/framework/Logger/Handler/Base.php(88): Monolog\Handler\StreamHandler->write(Array)
#1 /var/www/clients/client8/web13/web/vendor/monolog/monolog/src/Monolog/Handler/AbstractProcessingHandler.php(39): Magento\Framework\Logger\Handler\Base->write(Array)
#2 /var/www/clients/client8/web13/web/vendor/monolog/monolog/src/Monolog/Logger.php(344): Monolog\Handler\AbstractProcessingHandler->handle(Array)
#3 /var/www/clients/client8/web13/web/vendor/magento/framework/Logger/Monolog.php(48): Monolog\Logger->addRecord(400, 'Warning: includ...', Array)
#4 /var/www/clients/client8/web13/web/vendor/monolog/monolog/src/Monolog/Logger.php(712): Magento\Framework\Logger\Monolog->addRecord(400, 'Warning: includ...', Array)
#5 /var/www/clients/client8/web13/web/vendor/magento/framework/App/Bootstrap.php(266): Monolog\Logger->error('Warning: includ...')
#6 /var/www/clients/client8/web13/web/pub/index.php(40): Magento\Framework\App\Bootstrap->run(Object(Magento\Framework\App\Http\Interceptor))
#7 {main}