Notice: Undefined index: taxonomy_vocabulary_1_tid in views_dependent_filters_exposed_form_after_build() (Zeile 43 von /Applicat

Hi together,

i installed und configured the module like it should be but i always get this eror message:
Notice: Undefined index: taxonomy_vocabulary_1_tid in views_dependent_filters_exposed_form_after_build() (Zeile 43 von /Applications/XAMPP/xamppfiles/htdocs/binkos/sites/all/modules/views_dependent_filters/views_dependent_filters.module).

und the module doesn't works.

some ideas what to do?