Help Fix Dolby Digital Plus Equalizer - Razer Blade Stealth 2017 v2

Recently my Dolby Digital Plus software has stopped working and I'm looking for a solution and instructions on how to repair/update etc. the software drivers. Attached you can see that the equalizer is not working as it used to even though it's showing that the program is 'On'. Audio has been sounding flat since it stopped working. Any help would be much appreciated. Cheers! https://imgur.com/a/p0Duhte