Similar question to one of the above you as well.
Go into the admin > site manager > web forms > Click on the form you think that html belongs to.
In the url look for the "ID" - note it.
In your form you have a webformid of 74594
Is it the same?
If not - If you delete a form and then make it again, the form on a page, if inserted as HTML will not be the same form and will not be able to submit any information into the system.