'list' object has no attribute 'created_at'

[getData123]

Hello,

I have Bearer Token, it seems working but I get this error:

AttributeError: 'list' object has no attribute 'created_at'

And the line are from here:

results = munge_the_numbers(tweets, tweets[0].created_at, tweets[-1].created_at)

Can you please tell me what to change

Thank you for your help

[getData123]

I forgot to mention it was working for one year flawlessly
But when it stooped due to Twitter changes I made the Bearer Token and got this error