WooCommerce Box Office incompatibility issue with WPLMS theme

I have WPLMS installed for my website: https://academy.dk-education.ca
However, when I enabled the WooCommerce Box Office plugin, it caused the course directory page to lose all the interactive functionalities, clicking on course subject has no effect at all, actually, all buttons stopped functioning.
The link to the plugin is here: WooCommerce Smart Coupons - discount, credits, gift cards & promotions

Please help! Thank you.

Contact WooCommerce support for the help. The extension is not from Envato so noone would be able to help you.

I contacted WPLMS first, and they were asking me to post a topic in theird own support forum which I’m not able to do so for some weird reasons (they don’t have register button and their login button doesn’t work at all), and they don’t come here to answer my questions even though I sent them a link

Please use this link : https://www.wplms.io/support/wp-login.php?action=register

Your website says this code is invalid!!
Give me your email I will send the purchase info directly to you.

OMG why the support process is such a waste of time!