Coupon Code Elite breaking other shortcodes

Hello. I did try to submit a support ticket on your website but it didn’t seem to be working.

I have installed Elite and entered the supplied licence key, but as soon as I activate the plugin, all the shortcodes on my site break and their visible end products disappear. For example, I have a recent posts plugin that uses a shortcode and the posts slider just disappears. The shortcode for Coupon Code Elite itself doesn’t work either – with all the information entered, the coupon just doesn’t show up on the page. Have you seen this before?

Hope you can help, thanks in advance.

https://wordpress.org/plugins/coupon-code-plugin/