Nowadays hard to find a website that contains errors, because Google, these sites often thrown from the index. These were the question which, however, allow you to find something else.

Query Description
"error found handling the request" cocoon filetype:xml Program errors Cocoon - can contain the version number of Cocoon, file names, function names and layout information file
"#mysql dump" filetype:sql MySQL database errors - may contain information about the structure and content of the database