Pls help🙏🏼🙏🏼

Question

I’m an beginner in programming and cannot understand how to fox error

The program given to you defines a dictionary of metals, in which names are used as keys, and their price per 1 gram is used as values. The program takes the name and value of the 5th metal as input.
Add the 5th pair to the dictionary and write the code to display the message about the most expensive metal in the dictionary.

https://code.sololearn.com/c8PGS7x7t40X/?ref=app

Answer 1

https://code.sololearn.com/cNNVx2HKZDw3/#cs

Answer 2

Lothar THANK YOU SO MUCH!!!!!!

Answer 3

The code posted here doesn't work. it gives an error.I am struggling to find a solution. Pls help