I tried switching a customer to another event and I keep getting this error.
Any thoughts on what this is and how I can fix it? Or is the plugin having an issue?
Warning: array_merge(): Argument #1 is not an array in /home/123/public_html/123.com/wp-content/plugins/event-espresso-core-reg/core/EE_Error.core.php on line 784
Warning: Cannot modify header information – headers already sent by (output started at /home/123/public_html/123.com/wp-content/plugins/event-espresso-core-reg/core/EE_Error.core.php:784) in /home/123/public_html/123.com/wp-includes/pluggable.php on line 1216
I have not seen that error happen before with the Attendee mover, and I just checked again with a test to be sure. It will help to rule out a plugin/theme conflict, can you follow the troubleshooting guide that shows how to rule those out?
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