Can someone tell me how to fix this code?

Here is the link https://replit.com/join/ipnpkycuep-mateiolaru
if that dosn’t work try this: https://replit.com/@mateiolaru/BruisedAstonishingOctal#main.py

Mum_height.split

What is the intended format of the input? ‘%ft-%in’?

Aside: Recommend NOT capitalizing variable names. That convention is reserved for CLASS names.

split is a method so must be invoked.

mum.split('-')

which assumes there is a dash in the input string.