Plugin won't update

Please see this post:

https://support.searchandfilter.com/forums/topic/post-date-not-working-2/#post-201283

If the settings page does not have the option shown in that post’s screenshot, then do NOT use that method. Instead you will need to use the method described in this post:

https://support.searchandfilter.com/forums/topic/not-filtering-at-all-always-show-all-result/#post-212426