I've attempted to reach out to the plugin author of Enhanced Message but they unfortunately have not replied to provide support. The issue I'm having is when I'm editing a post type that includes a field with a Enhanced Message and I go to preview or publish the changes, I'm left with a white screen and the following message:
Cannot modify header information - headers already sent by (output started at ..../wp-content/plugins/acf-enhanced-message-field/acf-enhanced-message-v5.php:108) in /wp-includes/pluggable.php on line 1171
For whatever reason, I don't have this problem on my local server.
Thanks for the help!