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Hello
W3 Total Cache is causing this [10-Mar-2026 10:16:35 UTC] PHP Fatal error: Uncaught Error: Call to undefined function W3TC\getmypid() in /var/web/site/public_html/wp-content/plugins/w3-total-cache/Cache_File_Generic.php:69
When I disable it, SmartCrawl stops giving an error.
Is W3 Total Cache and SmartCrawl incompatible?
Hello Sebastian,
Thank you for reaching out, and I am happy to help!
Can you please try to change line 69 in the W3 Total Cache files – /wp-content/plugins/w3-total-cache/Cache_File_Generic.php live 69 from:$tmppath = $path . '.' . getmypid();
to
$tmppath = $path . '.' . \getmypid();Save the file and reload the plugin in the dashboard
Let me know if this helps!
Thanks!
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