Internal 500 error when uploading backup

Hi,

When performing a Remote Target System Restore, after uploading the xcloner_restore.php and vendor.phar files, then successfully connecting to the remote host, when it directs me to upload the backup I get an internal 500 error.

Here is the error log:

[2020-12-09 18:32:18] php_system.ERROR: E_ERROR: array ( 'type' => 1, 'message' => 'Uncaught Exception: We have received no valid response from the remote host, original message: in D:\\Wamp\\www\\nerdpunk\\assets\\plugins\\xcloner-backup-and-restore\\vendor\\watchfulli\\xcloner-core\\src\\Xcloner_File_Transfer.php:128 Stack trace: #0 D:\\Wamp\\www\\nerdpunk\\assets\\plugins\\xcloner-backup-and-restore\\vendor\\watchfulli\\xcloner-core\\src\\Xcloner_Api.php(1496): watchfulli\\XClonerCore\\Xcloner_File_Transfer->transfer_file(\'backup_nerdpunk...\', \'0\', \'45082efed6aad10...\') #1 D:\\Wamp\\www\\nerdpunk\\wp-includes\\class-wp-hook.php(287): watchfulli\\XClonerCore\\Xcloner_Api->restore_upload_backup(\'\') #2 D:\\Wamp\\www\\nerdpunk\\wp-includes\\class-wp-hook.php(311): WP_Hook->apply_filters(\'\', Array) #3 D:\\Wamp\\www\\nerdpunk\\wp-includes\\plugin.php(478): WP_Hook->do_action(Array) #4 D:\\Wamp\\www\\nerdpunk\\wp-admin\\admin-ajax.php(176): do_action(\'wp_ajax_restore...\') #5 {main} thrown', 'file' => 'D:\\Wamp\\www\\nerdpunk\\assets\\plugins\\xcloner-backup-and-restore\\vendor\\watchfulli\\xcloner-core\\src\\Xcloner_File_Transfer.php', 'line' => 128, ) [] []

And here is the log from the remote host:

[2020-12-09 13:31:53] xcloner_restore.INFO: Processing ajax request ID _amitrsc5m [] []
[2020-12-09 13:31:53] xcloner_restore.INFO: Current filesystem max upload size is 1073741824 bytes [] []

Any help would be appreciated.