Product filter by brand not working properly

Hello,
when you filter by brand and you clear active filters …it doesnt show the correct products but it goes to the url of the first brand you choosed in the filter.
I tried many ways but something is wrong. I installed the plugin before somedays.

Also it will be useful tha we can put the icon modal in the middle of the screen left or righn because at the corners usually are buttons for chat or shopping cart etc

Thanks