I'm really new here, so I could be doing something wrong, but when I'm going to import minute data from 2010 to 2018 the kernel dies. I've tried to import 2 parts separately (from 2010 to 2015 and then from 2015 to 2018) and it works, but later when I have to process the data after append the dataframes, it dies again. Is it a memory problem, and if I upgrade my plan will it stop occurring?