Instagram feed not showing

[leeshuzheng2]

I am unable to retrieve instagram feed at the moment. I've seen several issues suggesting to replace '@USERNAME' with '&ACCOUNTID' as the value of 'accounts':

instagram: {
accounts: ['&40xxxxxx510'],
limit: 4,
client_id: '1bd1axxxxxxxxxxxxxx27c02dbc',
access_token: '400xxxxxxxxxxxxxxxxxxa3c9e'
},

1. Do I still need an access_token?

2. As I am not seeing any errors thrown in the debug console, is there a way to turn on a debug option?

Thanks!