The Engine shuts off when at a stop. Also have a rattling on passenger side of the engine. Can anyone tell me what causes these issues

hi, i was just wondering, i thought the 2011 camry came with a timing chain and not a belt?. i think i am having the same problem now, it sounds like a card in a bicycle wheel spoke but its when i am driving i hear it. the car did cut off on me when i was parking and coming to a stop