Error "Invalid Property 'Main' Class, Replaced with object.?

So i deleted a BluePrint referenced inside my player controller blueprint and afterwards i was greeted with this error message in my player controller blueprint “Invalid Property ‘Main’ Class, Replaced with object”. What is Property 'Main" and how do i find it ,fix it or remove it?

My Bad forget to check my Interfaces, redudent Interface i thought i had deleted was causing the error