@N_T_D Hey there! I'm sorry to hear you encountered this issue, and that you aren't able to update the game to get the fix.
This quest is required to complete the Jotunheim Saga, and by extension, the Asgard saga. However, you'll still be able to complete the main storyline and reach most of the other content in the game.
You may be able to get around the issue by loading a save game from before the start of that quest. In order to update the game, you could also use a mobile hotspot or bring your console to an internet café. I understand this isn't a perfect soluti...