Embedding Spreadsheets on vBulletin

Here is a link to a public spreadsheet I've tried embedding on vBullein. HTML is enabled for forum. I keep getting the "Sorry, we could not process your request" error message. Here is the link:

http://www.bayoubucks.com/forum/showthread.php?t=44083

Here is an old link to similar documents that I've embedded in the same forum over the years with zero problems:

http://www.bayoubucks.com/forum/showthread.php?t=8791

Here is the html code that is problematic:

Thanks