Migrate

[asemion]

I copyed GS to another folder (another URL), tryed Migrate,
but get message "Failed to create Folder" by option Replace existing files

This happens when first time created internal catalogs: arch and mods. This is the work directories migrate folder inside.
On most of servers everything is created without problems (localhosts and real servers).
Your server is probably some kind of special.
You can try to copy to the directory plugins/migrate  .htaccess file with the following contents: "Allow from All".
And try again.
If this action is not successful, you can simply create the above mentioned catalogs itself.

Next time I probably will add these directories to the plugin itself.