Fatal error: Uncaught Error: Call to undefined function wcpdf_log_error() in /home/eokrrrmy/public_html/wp-content/plugins/woocommerce-pdf-invoices-packing-slips/includes/Semaphore.php:371 Stack trace: #0 /home/eokrrrmy/public_html/wp-content/plugins/woocommerce-pdf-invoices-packing-slips/includes/Semaphore.php(413): WPO\IPS\Semaphore::is_cleanup_scheduled() #1 /home/eokrrrmy/public_html/wp-content/plugins/woocommerce-pdf-invoices-packing-slips/includes/Semaphore.php(436): WPO\IPS\Semaphore::schedule_semaphore_cleanup() #2 /home/eokrrrmy/public_html/wp-includes/class-wp-hook.php(324): WPO\IPS\Semaphore::init_cleanup('') #3 /home/eokrrrmy/public_html/wp-includes/class-wp-hook.php(348): WP_Hook->apply_filters(NULL, Array) #4 /home/eokrrrmy/public_html/wp-includes/plugin.php(517): WP_Hook->do_action(Array) #5 /home/eokrrrmy/public_html/wp-settings.php(727): do_action('init') #6 /home/eokrrrmy/public_html/wp-config.php(105): require_once('/home/eokrrrmy/...') #7 /home/eokrrrmy/public_html/wp-load.php(50): require_once('/home/eokrrrmy/...') #8 /home/eokrrrmy/public_html/wp-blog-header.php(13): require_once('/home/eokrrrmy/...') #9 /home/eokrrrmy/public_html/index.php(17): require('/home/eokrrrmy/...') #10 {main} thrown in /home/eokrrrmy/public_html/wp-content/plugins/woocommerce-pdf-invoices-packing-slips/includes/Semaphore.php on line 371