Them Builder plugin issue

Hi,

We have a theme builder issue in our system after upgrading from 3.1.0 to 3.2.1. The page-trees are not rendering anymore, and are throwing this error:

dwr.engine._execute is not a function

getChildren()("cs", function())PageTreeDWR.js (line 9)

generateTree(Object id=cs title= Solution Patterns, Object target=_self showIcons=false selectionMode=node, "")pagetree.js (line 233)

init()Solution+Patterns (line 421)

init()()Solution+Patterns (line 423)

()Solution+Patterns (line 418)

dwr.engine._execute(PageTreeDWR._path,...eTreeDWR', 'getChildren', p0, callback);

Can you please provide us the solution to work with Theme Builder plugin 3.2.1 version.

Thanks & Regards - Sai