You are currently working on UAT 

Having upgraded to Studio 2019 SR2 I can no longer open Studio

I receive an error from the plug in BaccS and opening Studio stops

Method 'Set_id' in type 'BaccS_Plug_in.BaccsNotofocation' from assembly 'BaccS_Plugin, Version 2.5.0.0, Culture=Neutral, PublicKeyToken=112190be134d5a51' does not have an implementation.

Can anyone release me from this unfortunate situation?