Hey!
After upgrading to ACP 7.0.5 I noticed the export functionality is broken. Digging into it I found the admin-columns-pro/classes/Export/Exporter/CSV.php file is named incorrectly which breaks in case-sensitive environments like Linux (AWC/EC2)
The file should be named admin-columns-pro/classes/Export/Exporter/Csv.php as its listed in admin-columns-pro/vendor/composer/autoload_classmap.php
Changing that fixes it. Thanks!