Friday, 10-Sep-2010 13:04:39 PDT [an error occurred while processing this directive]

End-of-Log

By clicking on T you can Traceroute an entry, and W performs Whois on the domain name.
These records have all entries with "otala.com" and "us.oracle.com" removed as they most likely are just diagnostic entries by the system.
On error logs, entries attempting to retrieve "robots.txt" are spiders (search engines) checking (out of courtesy) what to index and what not to index.