Uncaught Error: Class ‘N2Filesystem’ not found

Resolved tomiero
(@tomiero)

6 years ago

hello, today I attempted to update Smart Slider to the newest version, and suddenly there is “critical error” notification. when I looked on to the nginx error log (I use nginx web server), here is what I got:

2020/05/27 15:14:34 [error] 19538#19538: *1286591 FastCGI sent in stderr: “PHP message: PHP Fatal error: Uncaught Error: Class ‘N2Filesystem’ not found in /var/www/hanaocase.com/html/wp-content/plugins/smart-slider-3/nextend/library/applications/system/plugins/loadplugin.php:7
Stack trace:
#0 /var/www/hanaocase.com/html/wp-content/plugins/smart-slider-3/nextend/library/library.php(57): require_once()
#1 /var/www/hanaocase.com/html/wp-content/plugins/smart-slider-3/nextend/nextend.php(11): require_once(‘/var/www/hanaoc…’)
#2 /var/www/hanaocase.com/html/wp-content/plugins/smart-slider-3/includes/smartslider3.php(5): require_once(‘/var/www/hanaoc…’)
#3 /var/www/hanaocase.com/html/wp-content/plugins/smart-slider-3/smart-slider-3.php(37): require_once(‘/var/www/hanaoc…’)
#4 /var/www/hanaocase.com/html/wp-includes/class-wp-hook.php(288): smart_slider_3_plugins_loaded()
#5 /var/www/hanaocase.com/html/wp-includes/class-wp-hook.php(312): WP_Hook->apply_filters()
#6 /var/www/hanaocase.com/html/wp-includes/plugin.php(478): WP_Hook->do_action()
#7 /var/www/hanaocase.com/html/” while reading response header from upstream, client: 162.158.165.216, server: hanaocase.com, request: “GET / HTTP/1.1”, upstream: “fastcgi://unix:/var/run/php/php7.4-fpm.sock:”, host: “hanaocase.com”

appreciate any help

thank you

The page I need help with: [log in to see the link]

Viewing 1 replies (of 1 total)

Plugin Support Gabor
(@nextendweb_gabor)

6 years ago

Hi @tomiero!

We saw this issue at some of our users and at them the problem was caused by, that the server’s cache was set up incorrectly, specifically the opcache.revalidate_freq value. This is how often your website checks the PHP files, whether they were changed or new files were created. With a high value this can cause issues with other plugins too and we suggest having the opcache.revalidate_freq with the value of 2.

If you have access to our admin area, you can check this opcache.revalidate_freq value, if you go to our Help center:
https://smartslider.helpscoutdocs.com/article/1773-help-center
where the “Debug information” should show this value, if opcache is enabled.

If this wouldn’t help, please rather contact us here:
https://smartslider3.com/contact-us/support/?topic=Other&platform=WordPress&version=Free
and we will try to help!

Viewing 1 replies (of 1 total)

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