Sanya Sanyechka Sanyok

So while i was doing start up for my new mod I got this message It opens this window Does anyone has any experience with this plugin? I am kinda afraid to install this because i think it can break something while modding in forge.

So when I start forge client I get this window with line marked by red rectangle and when i click on it, It says that module is not specified. I still able to press Run button but then i get this second window and I am wondering does it critical for my mod to fix this issue or I can just ignore it? I am still able to run Forge after clicking "Continue Anyway" button by the way.