matnfneo

Oks, even if I bought a regular license with more than 6 months old now?

Yes, those options were disabled.

I decided to uninstall W3TC, and install WPSC, and its working fine so far.

I wasn’t able to find a solution to my issue, so I opted for change the plugin.

Anyway, I still having a slow load page speed.

These are the errors after deleting the lines that I post before:

Warning: call_user_func_array() expects parameter 1 to be a valid callback, function ‘wp_ob_end_flush_all’ not found or invalid function name in /www/matiasfumazoni/htdocs/wp-includes/plugin.php on line 525

Warning: Parameter 1 to W3_Plugin_TotalCache::ob_callback() expected to be a reference, value given in Unknown on line 0

And these are the lines involved:

do {
foreach ( (array) current($wp_filter[$tag]) as $the_ )
if ( !is_null($the_[‘function’]) )
call_user_func_array($the_[‘function’], array_slice($args, 0, (int) $the_[‘accepted_args’]));

} while ( next($wp_filter[$tag]) !== false );

array_pop($wp_current_filter);
}

Hi Destac, thanks for the quiqly reply.

No, I tried deleting those lines and other error appears with wp_ob_end_flush_all in another file (/wp-includes/plugin.php). I also tried disabling gzip in w3tc, but the error persist.