Hi Samuel!
I’m sorry you are experiencing this issue. Let me help you troubleshoot that.
Are you having the issue with all the events or just one? Did it start happening after a certain action in your site like a plugin/theme update?
Could you please share with us a link to an event you are having the issue with?
Could you please enable WP_DEBUG and WP_DEBUG_LOG ? This will create a debug.log file inside the /wp-content directory.
After that, try making a ticket purchase, so that in case there is an error, it will be saved into the debug.log file. Please share that log file with us so we can spot the problem from there.
Thanks,
Victor