Fatal error: Uncaught UnexpectedValueException: The stream or file "/srv/public_html//var/log/debug.log" could not be opened: failed to open stream: Permission denied in /srv/public_html/vendor/monolog/monolog/src/Monolog/Handler/StreamHandler.php:107 Stack trace: #0 /srv/public_html/vendor/magento/framework/Logger/Handler/Base.php(87): Monolog\Handler\StreamHandler->write(Array) #1 /srv/public_html/vendor/monolog/monolog/src/Monolog/Handler/AbstractProcessingHandler.php(37): Magento\Framework\Logger\Handler\Base->write(Array) #2 /srv/public_html/vendor/monolog/monolog/src/Monolog/Logger.php(337): Monolog\Handler\AbstractProcessingHandler->handle(Array) #3 /srv/public_html/vendor/magento/framework/Logger/Monolog.php(48): Monolog\Logger->addRecord(100, 'cache_invalidat...', Array) #4 /srv/public_html/vendor/monolog/monolog/src/Monolog/Logger.php(532): Magento\Framework\Logger\Monolog->addRecord(100, 'cache_invalidat...', Array) #5 /srv/public_html/vendor/magento/framework/Cache/InvalidateLogger.php(42): Monolog\Logger->deb in /srv/public_html/vendor/monolog/monolog/src/Monolog/Handler/StreamHandler.php on line 107