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Fatal error: Uncaught Error: Call to undefined function W3TC\request_filesystem_credentials() in /var/www/vhosts/total4x4.com.au/public_html/wp-content/plugins/w3-total-cache/Util_WpFile.php:246 Stack trace: #0 /var/www/vhosts/total4x4.com.au/public_html/wp-content/plugins/w3-total-cache/Util_WpFile.php(21): W3TC\Util_WpFile::request_filesystem_credentials() #1 /var/www/vhosts/total4x4.com.au/public_html/wp-content/plugins/w3-total-cache/PgCache_Environment.php(462): W3TC\Util_WpFile::write_to_file('/var/www/vhosts...', '# BEGIN W3TC Pa...') #2 /var/www/vhosts/total4x4.com.au/public_html/wp-content/plugins/w3-total-cache/PgCache_Environment.php(31): W3TC\PgCache_Environment->rules_core_add(Object(W3TC\Config), Object(W3TC\Util_Environment_Exceptions)) #3 /var/www/vhosts/total4x4.com.au/public_html/wp-content/plugins/w3-total-cache/PgCache_ContentGrabber.php(1041): W3TC\PgCache_Environment->fix_on_wpadmin_request(Object(W3TC\Config), true) #4 [internal function]: W3TC\PgCache_ContentGrabber->_check_rules_present() #5 {main in /var/www/vhosts/total4x4.com.au/public_html/wp-content/plugins/w3-total-cache/Util_WpFile.php on line 246