Traceback from for budget app

is anyone else getting this traceback ?

Can you post link to your replit?

Do I need to change something in

Nothing should be changed in The error message is telling you what the problem is. Your Category class does not have a transfer method. It should have one according to the project requirements.

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Thank you. I have a hard time understanding the trackbacks…

I got it to run. I had missed a typo in my code