I haven't used it for a few months and just updated to the most recent version. I don't remember having this problem before, however now everytime I try to scrape a reasonably large list of urls from the SE's, it crashes, and frequently. Sometimes I can get ~30k urls scraped before it crashes, other times ~500k. That might sound like a lot but typically they're only ~10% unique domains and the point is that I'm not able to finish scraping my keyword list. Any suggestions as to what might be causing this?