Error message says ../Pagepreview.js" formHTML has no properties
When I try to use either Data Assist or Form Builder I am not getting a preview and the program hangs and I have to close Dreamweaver. I get the following error:
At line 458 of file "C:\Users\.......\Configuration\Shared\WebAssist\DataAssist\PagePreview.js"; formHTML has no properties
I have deleted the cache and uninstalled and reinstalled the extensions and it didn't help.