Bug in confront duchess florainne

After I defeated the duchess in a boss fight, i got stuck in the garden i fought in and i can t proceed the mission. I assume it s a bug, also your mission marker will be in the middle of the garden in the water. I tried rebuilding database and updating the software on the ps 4 and tried restarting the game several times but i am still stuck, and can t access anything in the game except that garden and my inventory-charachter record and unfotunately i don t have any saves except th auto save.