Urgent Issue: Form submission not completing

Hello,

http://creator.zoho.com/rajivraj/ist/form/15/

All was ok until I copied IST to create WST! After this, the form submission every ends though data is submitted. FireBug says

_80 is null
showFormSubmitMsg(Document , [], [])zohocrea...orlive.js (line 513)
(?)()()zohocrea...orlive.js (line 4462)
[Break on this error] _80.innerHTML="";

I deleted the copied app (WST) and still the same error.

I launched http://www.smartwebworks.net/IndianStartupTimeline/ and Boom! this error pops out a hour after I announce! Please look into it asap.

Thanks,
rajspace@gmail.com