Please email supportdos2@larian.com, with your latest save, and maybe the oldest after you first arrived on the Nameless isle, and most recent before that, if available.
In the Saved Data in System Storage section of the Settings menu, click Copy to USB Storage Device, select the relevant save(s) and Copy. From there you can zip the files on a computer, then copy to email or upload to Dropbox or Google drive, etc and provide a link. Email attachments larger than 20-25MB can be dropped from support email, so sending them as attachments might require separate email.