Belt drive conversion SLIM for Triumph Thruxton 1200 (Silver)

Fatal error: Uncaught Error: Cannot use object of type WP_Error as array
in /var/www/vhosts/sprparts.co.nz/httpdocs/wp-content/plugins/partpay-woocommerce-7151b8128ddf/partpay.php on line 679

Call stack:

1. WC_Gateway_PartPay::check_cart_within_limits()
   wp-includes/class-wp-hook.php:303
2. WP_Hook::apply_filters()
   wp-includes/plugin.php:189
3. apply_filters()
   wp-content/plugins/woocommerce/includes/class-wc-payment-gateways.php:163
4. WC_Payment_Gateways::get_available_payment_gateways()
   wp-content/plugins/latitude-pay-genoa-pay-integrations/includes/wc-latitudefinance-functions.php:95
5. wc_latitudefinance_show_snippet_in_product_page()
   wp-includes/class-wp-hook.php:303
6. WP_Hook::apply_filters()
   wp-includes/class-wp-hook.php:327
7. WP_Hook::do_action()
   wp-includes/plugin.php:470
8. do_action()
   wp-content/plugins/woocommerce/templates/content-single-product.php:43
9. require()
   wp-includes/template.php:772
10. load_template()
    wp-content/plugins/woocommerce/includes/wc-core-functions.php:284
11. wc_get_template_part()
    wp-content/themes/theme47530/woocommerce/single-product.php:37
12. include()
    wp-includes/template-loader.php:106
13. require_once()
    wp-blog-header.php:19
14. require()
    index.php:17