If the problem is the crash related to troll droppings, the upcoming patch (no ETA yet) will allow you to load the save. A couple people have claimed the Alfie quest was related to crashes, but none have contacted support with relevant saves, and that was not observed in testing.
If you email supportdos@larian.com, with a description (or link to this topic) and your save I can get someone to check it. You would first need to transfer it to a USB flash drive, and a then a third party tool is required for drives formatted for Xbox One (
see here).