Key error

[sbrj]

Thanks for the public code and the video on youtube.

I'm having a 'key error' and don't know how to fix. Please help me with this.
'''

File "c:\Users\mauri\Documents\Instabot\Instagram-bot\bot.py", line 53, in
username = cparcer['AUTH']['USERNAME']
File "C:\Program Files\Python37\lib\configparser.py", line 958, in getitem
raise KeyError(key)
KeyError: 'AUTH'

'''