Fatal error al momento dell’attivazione

Ricevo questo messaggio di errore

Fatal error: Uncaught Error: Class 'ZipArchive' not found in /home/oo1h66lf/public_html/wp-content/plugins/campi-moduli-italiani/admin/class-gcmi-activator.php:432 Stack trace: #0 /home/oo1h66lf/public_html/wp-content/plugins/campi-moduli-italiani/admin/class-gcmi-activator.php(233): GCMI_Activator::extract_csv_from_zip('/home/oo1h66lf/...', '/home/oo1h66lf/...', 'soppressi.csv') #1 /home/oo1h66lf/public_html/wp-includes/class-wp-hook.php(307): GCMI_Activator::activate('') #2 /home/oo1h66lf/public_html/wp-includes/class-wp-hook.php(331): WP_Hook->apply_filters('', Array) #3 /home/oo1h66lf/public_html/wp-includes/plugin.php(476): WP_Hook->do_action(Array) #4 /home/oo1h66lf/public_html/wp-admin/plugins.php(194): do_action('activate_campi-...') #5 {main} thrown in /home/oo1h66lf/public_html/wp-content/plugins/campi-moduli-italiani/admin/class-gcmi-activator.php on line 432