Hey @Kiki,
I’m really sorry to hear about this – there unfortunately may not be anything we can do. I see that your Events Calendar Pro license was purchased on October 13, so if worst comes to worst and we can’t get things working, we can issue you a refund (we can only issue refunds within 30 days of purchase).
However, one thing that might help here is to leave both plugins activated, so that the conflict exists, and then to see if any errors pop up on your site if you head to your site’s wp-config.php file and change this line of code:
define('WP_DEBUG', false);
to this:
define('WP_DEBUG', true);
That will display PHP errors if any exist. Let us know if any errors pop up after doing this!
Thank you,
George