TypeError: Expected sequence or array-like, got <class 'NoneType'>

This error indicates that a function or method was expecting a sequence or an array-like object as an input, but instead received a NoneType object (i.e., a null value).

To fix this error, you need to ensure that the input being passed to the function is a valid sequence or array-like object. You may also need to check for cases where the input may be None and handle them appropriately.