ListView filter not working / broken

Good day!

I tried extending the listview query using the code below. But I whenever I click the filter button, it doesn’t show like it used to be.

function listViewProcess(){
$this->params = ’ AND pi_prospect_inquiry_cstm.inquiry_date_c >= last_day(now()) + interval 1 day - interval 3 month’;
$this->lv->setup($this->seed, ‘include/ListView/ListViewGeneric.tpl’, $this->where, $this->params);
echo $this->lv->display();

I tried adding this in the first line inside the function


but the filter is showing even without clicking the filter button.

im using SuiteCRM v7.10.10.