Good evening Israel and welcome back!
Thank you for reaching out to us.
We are sorry to hear about the tickets not being sent out.
I would love to help you with this topic.
The first thing I would recommend is to check your setting under Events -> Settings -> Tickets to make sure that the proper options are selected at the very bottom of the page.
Secondly, that type of issue is typically solved by having the system send tickets from any chosen email address by simply installing, configuring and testing the following plugin: https://wordpress.org/plugins/easy-wp-smtp/
Using a real SMTP server with authentication will bypass the built-in WP mail functionality altogether.
Please make sure you configure and test the settings using the plugin’s built-in tool.
Let me know if that helps.
Have a great day!
Geoff B.