Building Form. Keep getting and error and Dreamweaver crashes

I am building a form to place in a website and I have done it in 2 parts. First I created the form and edited all the fields. then I hit "finish". the form exists in my webpage. Then i went back in to edit the design. I went through all the options and then hit "finish" and get an error. the error reads:

"While executing onMouseDown in WAFB_AddForm.htm, the following Javascript error(s) occurred:

At line 4179 of file "Belial:Library:Application Support:Adobe:Dreamweaver CS6:en_US:Configuration:Shared:WebAssist:Services:fb_shared_functions.js":DWfile.getAttributes(orig) has no properties

Then Dreamweaver crashes and I lose all my formatting. I have redone this a few times, wasted a lot of time and energy and am getting no where. My client is breathing down my throat and I don't understand why this is happening. Earlier this week i created a test version and did the whole process and got my form results and felt pretty confident that when I had to make the actual form for my client it was go very easily.

I researched your forum and the only advice I saw was to go to Window > Work Space Layout > Reset (showthread.php?t=29781). I then had to reactive Data Bridge and then I get the same results. What am I doing wrong? I bought these extensions to make my life easier and have this go quickly, yet here I am stalled and frustrated.

as you can see from this link, the form is in my page but default formatting is applied. appointments.php

Please help.