Taking another look at this, the error seems to be indicating that this string is somewhere in your email content: "{{$TriggerObject.Name}}"Could you check your Email HTML and the ...
A cursory search seems to indicate that this is usually related to a local extension/malware. Can you check your extensions in chrome to see if there are any unknown extensions?
I would use this method instead: How to Use Marketo Forms to Register Multiple Event Attendees The server-side form post method isn't supported and is extremely error-prone.
Our blog has a lot of examples: http://developers.marketo.com/blog/ One specific one would be sending operational email: http://developers.marketo.com/blog/sending-transactional-...
You can pull info from the opportunity via scripting tokens. In this case you'd probably want to pul the name, and any other info, from the $TriggerObject. You can read more here a...