Hi. I had same problem. and I solved it. try this
varsion : 1.1.5
file : media-file-manager-advanced/media-relocator.php
Line : 427
throw new Exception(‘1’); ← comment!
Result :
if (!mysql_query(“START TRANSACTION”, $wpdb->dbh)) {
//throw new Exception(‘1’);
}
I think… this code may cause Error 1. because mysql server can’t start transaction.
Anyway, you comment this code, you can rename folder and file.
note : if you upload an image file, wordpress create thumbnails. but this plugin don’t change thumbnail’s file names. So, if you want to rename image files, i recommend use another rename plugin.
https://www.ads-software.com/plugins/media-rename/