Sorry - of course:
- No Prefilters defined
- No URL-Filter set (neither in Menu nor in list)
- advanced search ist turned off
- don't know what you mean with advanced filters ??? (advanced search ist turned off)
But the most important: With GitHub 3.0.6.3 the errormessage is gone!;D
Now my ORDER-BY-Statement in "Joins where and/or order" is used in the form, but not in the dropdown-filter in the list-view.
I tried to set the element->filters->order by - option, but it has only the options "label" and "id". I bet, there was a "none" option before the update that should make Fabrik use my own ORDER BY ?