Wordpress LScache Plugin: A critical error at update to version 4.4.2
Last Updated on: Wed, 15 Apr 2026 00:00:02 Hi, Get a critical error when updating Litespeed plugin to version 4.4.2. Things seem to work though. I wonder if there is something with my site or the plugin? An error of type E_ERROR occurred on line 57 in file: /siteurl/wp-content/plugins/litespeed-cache/src/optimize.cls.php. Error: Uncaught Error: Call to undefined method LiteSpeed Optimize::cls() in /siteurl/wp-content/plugins/litespeed-cache/src/optimize.cls.php:57 Stack trace: #0 /siteurl/wp-content/plugins/litespeed-cache/src/instance.cls.php(22): LiteSpeed Optimize->__construct() #1 /siteurl/wp-content/plugins/litespeed-cache/src/purge.cls.php(298): LiteSpeed Instance::get_instance() #2 /siteurl/wp-content/plugins/litespeed-cache/src/purge.cls.php(176): LiteSpeed Purge->_purge_all_cssjs(true) #3 /siteurl/wp-content/plugins/litespeed-cache/src/purge.cls.php(165): LiteSpeed Purge->_purge_all(Object(Plugin_Upgrader)) #4 /siteurl/wp-includes/class-wp-hook.php(305): LiteSpeed Purge::purge_all(Object(Plugin_Upgrader)) #5 /siteurl/wp-includes/class-wp-hook.php(327): WP_Hook->apply_filters(NULL, Array) #6 /siteurl/wp-includes/plugin.ph Hi, emmm , only this log seems doesnt provide enough information does the error message keep shows up ? the file in question is related to page optimization like JS minify , CSS combine ?etc do you experience any issue with it ? Best regards,
LiteCache Rush: Speed comes from using less, not from doing it faster
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