Hi, Alex. Sorry to hear this is happening.
You can view the Attendees report for each event separately, but there isn’t an overall “All tickets” view at this time.
To view an event’s Attendees, go to that event’s wp-admin edit screen, then go to the Tickets metabox, then click the “Attendees” link.
And if your ticket emails aren’t sending, you might want to see if all your site’s emails aren’t sending (e.g. password reset emails), in which case you may need to use an SMTP plugin or make sure your emails aren’t ending up in Spam/Junk.
Here are some SMTP plugins to consider (not a comprehensive list and all are third-party (not guaranteed or supported by us):
You could also use an email sending provider like https://wordpress.org/plugins/mailgun/ or https://wordpress.org/plugins/mailin/ or other alternatives.
I hope you make some progress with this information.
Please let me know how this goes for you.