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1/1 ErrorException in Filesystem.php line 111: file_put_contents(/var/www/html/storage/framework/sessions/9Ec31il9gRTsY0Fe3uS8eKIbeHqjrVu4SOLjB5oo): failed to open stream: No space left on device

in Filesystem.php line 111
at HandleExceptions->handleError(2, 'file_put_contents(/var/www/html/storage/framework/sessions/9Ec31il9gRTsY0Fe3uS8eKIbeHqjrVu4SOLjB5oo): failed to open stream: No space left on device', '/var/www/html/vendor/laravel/framework/src/Illuminate/Filesystem/Filesystem.php', 111, array('path' => '/var/www/html/storage/framework/sessions/9Ec31il9gRTsY0Fe3uS8eKIbeHqjrVu4SOLjB5oo', 'contents' => 'a:3:{s:6:"_token";s:40:"MEsG0J4hUSLZT1pgOTOhDoDac8mRZ39GOkzcf3rG";s:9:"_previous";a:1:{s:3:"url";s:60:"http://www.networkbulls.com/profile/professor-agail/activity";}s:6:"_flash";a:2:{s:3:"old";a:0:{}s:3:"new";a:0:{}}}', 'lock' => true))
at file_put_contents('/var/www/html/storage/framework/sessions/9Ec31il9gRTsY0Fe3uS8eKIbeHqjrVu4SOLjB5oo', 'a:3:{s:6:"_token";s:40:"MEsG0J4hUSLZT1pgOTOhDoDac8mRZ39GOkzcf3rG";s:9:"_previous";a:1:{s:3:"url";s:60:"http://www.networkbulls.com/profile/professor-agail/activity";}s:6:"_flash";a:2:{s:3:"old";a:0:{}s:3:"new";a:0:{}}}', 2) in Filesystem.php line 111
at Filesystem->put('/var/www/html/storage/framework/sessions/9Ec31il9gRTsY0Fe3uS8eKIbeHqjrVu4SOLjB5oo', 'a:3:{s:6:"_token";s:40:"MEsG0J4hUSLZT1pgOTOhDoDac8mRZ39GOkzcf3rG";s:9:"_previous";a:1:{s:3:"url";s:60:"http://www.networkbulls.com/profile/professor-agail/activity";}s:6:"_flash";a:2:{s:3:"old";a:0:{}s:3:"new";a:0:{}}}', true) in FileSessionHandler.php line 83
at FileSessionHandler->write('9Ec31il9gRTsY0Fe3uS8eKIbeHqjrVu4SOLjB5oo', 'a:3:{s:6:"_token";s:40:"MEsG0J4hUSLZT1pgOTOhDoDac8mRZ39GOkzcf3rG";s:9:"_previous";a:1:{s:3:"url";s:60:"http://www.networkbulls.com/profile/professor-agail/activity";}s:6:"_flash";a:2:{s:3:"old";a:0:{}s:3:"new";a:0:{}}}') in Store.php line 128
at Store->save() in StartSession.php line 88
at StartSession->terminate(object(Request), object(Response)) in Kernel.php line 216
at Kernel->terminateMiddleware(object(Request), object(Response)) in Kernel.php line 187
at Kernel->terminate(object(Request), object(Response)) in index.php line 59
at require_once('/var/www/html/public/index.php') in index.php line 20