Voting Classifier failure

[loud sphinx]

I'm working on the titanic dataset from Kaggle and I'm trying to determine the optimal models for the Voting Classifier

X_train is a dataframe but y_train is a numpy array

[unkempt basin]

Try converting the y_train to a dataframe then (make sure the values match the respective inputs)

[loud sphinx]

y_train and X_train are now both dataframes, but it still doesn't work. Other pipelines work, so could it be the issue that it's basically a pipeline of a classifier with more pipelines inside?

new error