Increase the acc score

Hi, sorry to bother, I am new to Knime, and I am doing this project that I’m supposed to analyse the data, and extract the most relevant information. I’m testing the loan status results, but I can’t get the acc up, since I’m new, i am not sure what to do to improve it. So I am asking for some advice.

KNIME_project.knwf

loan_test.csv

I can’t upload the train dataset because its too big