There has been an issue fixed that could cause a crash when saving and another issue still being looked into.
If you email supportdos@larian.com, with a brief description (especially if there is something specific you can to that will usually cause a crash, in addition to quicksaves consistently crashing), I will create a support issue to get a programmer to take a look at it, and see if it is a known issue.
You would need to transfer the save(s) to a USB flash drive first. In the Saved Data in System Storage section of the Settings menu, click Copy to USB Storage Device, select the save(s) and Copy. From there you can zip the files, then copy to email or upload to Dropbox or Google drive, etc, and provide a link.