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Ticket PDF Download shows fatal error

Posted: January 16, 2013 at 12:14 pm


January 16, 2013 at 12:14 pm

Hi guys,

when people click the “Download PDF” Button on the right top on a customized ticket it leads to that:

Fatal error: Uncaught exception ‘Exception’ with message ‘This function is not compatible with non-static object methods due to PHP Bug #44144.’ in /home/youcan1/public_html/ Stack trace: #0 /home/youcan1/public_html/ require_once() #1 /home/youcan1/public_html/ espresso_ticket_launch() #2 /home/youcan1/public_html/ espresso_export_ticket(‘604′, ’28-50e9e10c1543…’) #3 /home/youcan1/public_html/ do_action(”) #4 /home/youcan1/public_html/ require_once(‘/home/youcan1/p…’) #5 /home/youcan1/public_html/ require_once(‘/home/youcan1/p…’) #6 /home/youcan1/public_html/ require_once(‘/home/youcan1/p…’) in /home/youcan1/public_html/ on line 385

What to do?


January 17, 2013 at 2:55 am

Hi Chris,

Can I confirm that your Event Espresso add ons are up to date? I can see that the main plugin is, but not the rest.


  • Support Staff

January 17, 2013 at 8:21 am

Hi Chris,

Another thing that would be good to check is the version number of PHP that your server is running. You can get this information by going to the Event Espresso>Help/Support screen in the admin area of your site.


January 29, 2013 at 3:19 pm


The two add ons that were not up to date were Groupon and Permissions. Both are not in use and deactivated on our website. I updated them anyway. Error still occurs.

PHP Version is 5.2.17


  • Support Staff

January 30, 2013 at 4:59 pm

Hi Chris,

I have the same version of PHP on my server, and I’m not seeing this happen on my setup when I download the PDF ticket.

You could try download one of the newer versions of dompdf from here:

and uploading the unzipped folder to the wp-content/plugins/event-espresso/tpc location. Please be sure to rename the existing dompdf folder first.


February 1, 2013 at 8:26 am

Thank you.

I did. But it changed nothing.


February 1, 2013 at 8:29 am


Sorry, I was too fast.

Now it works like charm with that new version of dompdf.

Thanks for resolving this.

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