Yep, try again. The gravity of your starter was a little to high and during the rehydration phase yeast nutrient is toxic to yeast. Try for a gravity of around 1.020, and no yeast nutrient but a rehydration nutrient such as go ferm for the yeast. Then over time add more and more must.
Sorry, perhaps I should have been more clear.. I would try one more time... Yeast is cheap honey is not.