js error does’t allow form submissions

Im using elementor in my site and installed a Form to download my lead magnet but it stays in loop after clicking the submit button. It not only happens with Elementor forms but also from email platforms like Mialchimp and Get Response.

After many days, they told that the issue is due to a js error from your plugin Woocommerce Boost Sales Premium.

Please help me stop the js error because in the meantime i Had to disable it.

Regards,

Lili