fatal eror

Uncaught Picqer\Barcode\Exceptions\BarcodeException: Neither gd-lib or imagick are installed!
in /home/kalagest/domains/taminghesti.ir/public_html/wp-content/plugins/pepro-ultimate-invoice/include/vendor/picqer/php-barcode-generator/src/BarcodeGeneratorPNG.php on line 22

Call stack:

1. Picqer\Barcode\BarcodeGeneratorPNG::__construct()
   wp-content/plugins/pepro-ultimate-invoice/pepro-ultimate-invoice.php:116
2. peproulitmateinvoice\PeproUltimateInvoice::__construct()
   wp-content/plugins/pepro-ultimate-invoice/pepro-ultimate-invoice.php:2499
3. peproulitmateinvoice\{closure}()
   wp-includes/class-wp-hook.php:341
4. WP_Hook::apply_filters()
   wp-includes/class-wp-hook.php:365
5. WP_Hook::do_action()
   wp-includes/plugin.php:522
6. do_action()
   wp-settings.php:593
7. require_once('/home/kalagest/domai...html/wp-settings.php')
   wp-config.php:106
8. require_once('/home/kalagest/domai...c_html/wp-config.php')
   wp-load.php:50
9. require_once('/home/kalagest/domai...lic_html/wp-load.php')
   wp-blog-header.php:13
10. require('/home/kalagest/domai...l/wp-blog-header.php')
    index.php:17