Troubleshooting

you have something broken in Tickera and want the index of common troubleshooting topics — emails, blank PDFs, REST API, scanners, licensing — in one place to find your specific problem fast.

Emails not arriving

• Emails not delivered or going to spam — the single most common issue. Fix: install a proper SMTP plugin.
• Download URL not clickable in email
• Resend email to attendees

Tickets & PDFs

• Ticket downloaded as PDF but is blank
• Tcpdf.php file missing
• Server Error 500 on ticket templates
• Letters corrupted on ticket — usually a font issue.
• Error downloading tickets

Check-in apps

• Wrong Ticket Code error during check-in
• Checkinera login error
• Checkinera not loading all attendees
• Sold tickets count doesn’t match check-in app

Licensing / account

• Unable to activate my license
• “License key is not valid” error
• What happens when my license expires
• Can’t access my Tickera account

Admin / menu / display

• Menu disappears when Tickera is activated
• Missing Ticket Types menu
• Missing Payment Gateways menu
• Activated add-ons not showing in menu
• Dashboard won’t load / takes too long

Checkout / payments

• Payment failed but ticket generated
• Order stuck on Processing status
• Order status is Received after successful payment
• Error on payment page
• Stripe error
• Order confirmation page returns 404

Shortcodes / front-end display

• Shortcodes not loading content
• Event tickets not displaying
• Seating chart shortcode no longer creates button
• Custom forms not showing on checkout

Server / hosting

• 413 Request Entity Too Large
• “The link you followed has expired” during install
• Can’t upload plugin ZIP
• Sessions not auto-deleted (database bloat)
• Configuring caching plugins

Couldn’t find your issue?

If your problem isn’t on this page, browse the full documentation or contact support — we read every message.