I tried that and it always fails because of the amount of data. That is the reason I purchased your plugin. I was told I could use your pro version to migrate the files.
Here is the result: https://staging.inexhaust.com/wp-admin/admin-ajax.php?action=wpdm_import_csv_file&_csvimport_nonce=0ecfcc413b&_fs_blog_admin=true
And the log entry:
[15-Apr-2021 13:03:01 UTC] PHP Fatal error: Uncaught Error: Cannot use string offset as an array in /home/inexha5/staging.inexhaust.com/wp-content/plugins/download-manager/admin/menus/class.ImportExport.php:285
Stack trace:
#0 /home/inexha5/staging.inexhaust.com/wp-content/plugins/download-manager/admin/menus/class.ImportExport.php(124): WPDM\admin\menus\ImportExport->importRow(Array)
#1 /home/inexha5/staging.inexhaust.com/wp-includes/class-wp-hook.php(292): WPDM\admin\menus\ImportExport->import(”)
#2 /home/inexha5/staging.inexhaust.com/wp-includes/class-wp-hook.php(316): WP_Hook->apply_filters(”, Array)
#3 /home/inexha5/staging.inexhaust.com/wp-includes/plugin.php(484): WP_Hook->do_action(Array)
#4 /home/inexha5/staging.inexhaust.com/wp-admin/admin-ajax.php(187): do_action(‘wp_ajax_wpdm_im…’)
#5 {main}
thrown in /home/inexha5/staging.inexhaust.com/wp-content/plugins/download-manager/admin/menus/class.ImportExport.php on line 285
[15-Apr-2021 13:09:52 UTC] PHP Warning: array_key_exists() expects parameter 2 to be array, null given in /home/inexha5/staging.inexhaust.com/wp-content/plugins/vc-tabs/Helper/Public_Helper.php on line 66