i did the solution. it worked but i cant see the names of the individual filters. i.e. i can see only the tick boxes and not the corresponding name of the tick box. if i randomly click and any tick box and press apply filter the filter works but i am not sure what i have pressed ^^.
And why did this error occurred in the first place since i haven’t changed anything nor it was a fresh install. maybe it was after the update and didn’t not notice, who knows.