w3-total- cache/Cache_ File Cleaner_ Generic.php on line 58

Hello,

I am sorry about the issue you are having and I am happy to assist you with this.

Can you confirm what PHP version you are using? It looks like you’re using PHP 5.2 or even older. The function is introduced in PHP 5.3
Both are ancient versions of PHP, I suggest you upgrade to PHP7 (preferably 7.3, as that is the latest stable), but at least to PHP 5.6
Backward compatibility to 5.2 is better in 5.6 as there are a lot of deprecated functions removed in PHP7.
You might be blocking the function in your php.ini disable_functions
In any case, it’s related to your installation as it’s a PHP core function. It’s not related to our plugin. You should contact your server provider for assistance.

@vmarko ,hi,PHP version is 7.3.8,and this error seems only occurs when purge all pages,it works fine in purge current page,no error

@vmarko ，hi,how can i solve this?

why no respond????
@vmarko
disable_functions = passthru,system,chroot,chgrp,chown,shell_exec,popen,proc_open,ini_alter,ini_restore,dl,openlog,syslog,readlink,symlink,popepassthru,putenv

which show i delete from the php.ini to solve this？

Hello @losvincent,

Please contact your service provider for assistance.

@vmarko pls just tell me which shall i delete from disable_function list in php.ini
mine is vps,not a virtual host,they don’t help this