This week i found that one week of my zero charts is either bugged or glitched because its filled with all of these random bands and songs I'd never listen to and it didnt bother me until these songs made artist that I actually listen to fall lower on the chart points and weeks #1 and songs top 10 charts.
Also when I click on the song it says 0 plays and N/C. And the week is not even on my last.fm because there was no songs played that week (it was before I actually used last.fm daily)