React course deployment error

help me i stuck from last 3 days here is my mongodb atlas connect

after this I go to terminal and paste this command
heroku config:set vidly_db=“mongodb+srv://”

i put inverted “” comma from “mongodb at the end of majority” and I get the error “w” is not recognized

when I type heroku open it shows me

when I do logs I found following error

Check this thread and see if that helps :