Hi Hassan!
I’m glad it worked out for you!
If you want to hide the number of available tickets, you would have to make a template override of the tickets.php template file located at /wp-content/plugins/event-tickets-plus/src/views/wootickets/ similar to what you did with the email template file and following the steps provided in our themer’s guide.
I hope it helps! Is there anything else I can help you with? Let me know.
Best,
Victor