ah, I forgot, I also play selector battle with WIXOSS. New patches for japan only games can be downloaded easily (you will get prompt) from QooApp at start up, that's how I update Fate Grand Order, which often is updated.
Please post in the thread containing the dead links to make handling reuploading easier. Make sure to include which files on which host are affected. You can use the link checkers in my signature to figure it out. :)