Issue: you can't equip a new crystal into a socketed tool, weapon, claw or something else
Trade the item with a friend or put it into a structure like a guildhouse (some said it works with your vault too), this will reset the item and you can equip your crystals again to it.
Issue: after dying you try to eat something and get a error message: you can't eat while in combat...
Attack the tavernkeeper or something else and enjoy your meal.