ValueError: ('Lengths must match to compare', (50,), (1,))

This error message is indicating that there is an attempt to compare two arrays or sequences of different lengths. Specifically, one sequence has a length of 50, while the other has a length of 1. This is not allowed in Python because it is not possible to compare items in sequences that do not have the same number of elements.

To fix this error, you need to make sure that the two sequences being compared have the same length. Depending on the context, this could involve modifying the code to ensure that both sequences are of the same length, or it could involve selecting a different sequence to compare with the first one.