Admin - buildTreeView() - error in 1.5.6.3

[P_S_L]

Hi,

 

I have a little bug. the buildTreeView() function always gets an error  on 

 

$('#categories-treeview li#'+id_category_root+' span').trigger('click');  

 

"Cannot read property 'createDocumentFragment' of undefined".

 

The error is on every page (admin-product, blocklayered, category). It isn't possible to assign anything to a category. 

 

It's a presta 1.5.6.3 with the standard backand (no changes) but I have about 700 categories. Maybe is that the problem? 

 

Any ideas?

 

Greets,

Leo