The file leveler.py sometimes has run into a ZeroDivisionError, printing out the line "Got ZeroDivisionError with high sample path"... But I don't know what this means exactly, so here are a couple of questions:

• How does the leveler work?
• Why is there a division by zero issue?
• Is there any way we could recover from that error automatically?
• If not, can we at least let the user know how to work around the error?