It seems to be working fine now. Whenever the log won't load, that typically means someone else has tied up the log server running a query with a huge number of transaction results, so until that query returns all its results to that user, everyone else's queries wind up waiting in line.
For this reason, we recommend running log queries to be as specific as possible -- e.g., ideally you'd have a specific Transaction ID or buyer name/email to search, or you can run a query for just the specific date range and/or product you're looking for. For customer service with a particular buyer, you could also search your own email records for the buyer's name/email in the Sale Notification emails we send you every time we process an order for you.
