Bionix Medical Technology 9555 – Ear Curette FlexLoop White 4mm 50/BX

Uncaught Error: call_user_func_array(): Argument #1 ($callback) must be a valid callback, class LAC_Subscriptions does not have a method "modify_add_to_cart_text"
in /var/www/wordpress/wp-includes/class-wp-hook.php on line 324

Call stack:

1. WP_Hook::apply_filters()
   wp-includes/plugin.php:205
2. apply_filters()
   wp-content/plugins/woocommerce/includes/abstracts/abstract-wc-product.php:2072
3. WC_Product::single_add_to_cart_text()
   wp-content/themes/lac/woocommerce/single-product/add-to-cart/simple.php:74
4. include('/var/www/wordpress/w...d-to-cart/simple.php')
   wp-content/plugins/woocommerce/includes/wc-core-functions.php:346
5. wc_get_template()
   wp-content/plugins/woocommerce/includes/wc-template-functions.php:1933
6. woocommerce_simple_add_to_cart()
   wp-includes/class-wp-hook.php:324
7. WP_Hook::apply_filters()
   wp-includes/class-wp-hook.php:348
8. WP_Hook::do_action()
   wp-includes/plugin.php:517
9. do_action()
   wp-content/plugins/woocommerce/includes/wc-template-functions.php:1923
10. woocommerce_template_single_add_to_cart()
    wp-content/plugins/et-core-plugin/app/models/customizer/functions.php:2137
11. etheme_woocommerce_template_single_add_to_cart()
    wp-includes/class-wp-hook.php:324
12. WP_Hook::apply_filters()
    wp-includes/class-wp-hook.php:348
13. WP_Hook::do_action()
    wp-includes/plugin.php:517
14. do_action()
    wp-content/plugins/et-core-plugin/app/models/customizer/theme-options/global/callbacks.php:3235
15. single_product_bulder_content_callback()
    wp-content/themes/lac/woocommerce/content-single-product-builder.php:63
16. require('/var/www/wordpress/w...-product-builder.php')
    wp-includes/template.php:812
17. load_template()
    wp-content/plugins/woocommerce/includes/wc-core-functions.php:285
18. wc_get_template_part()
    wp-content/themes/lac/woocommerce/content-single-product.php:16
19. require('/var/www/wordpress/w...t-single-product.php')
    wp-includes/template.php:812
20. load_template()
    wp-content/plugins/woocommerce/includes/wc-core-functions.php:285
21. wc_get_template_part()
    wp-content/themes/lac/woocommerce/single-product.php:33
22. include('/var/www/wordpress/w...e/single-product.php')
    wp-includes/template-loader.php:106
23. require_once('/var/www/wordpress/wp-includes/template-loader.php')
    wp-blog-header.php:19
24. require('/var/www/wordpress/wp-blog-header.php')
    index.php:17