Not sure how you can both claim that you didn't know it was there but also trying to use it 3 days ago, even if you "deleted it" (hint: windows doesn't make files hidden once you delete them).
You were told previously about an issue with your other GTA, being given the benefit of the doubt. To then proceed again to install this into the same GTA as you use for Valrise after already being given the benefit of the doubt once is absolutely crazy behaviour.
Your apology is accepted, however that does not reduce the legitimacy of the ban. You joined the server with HeadshotAimbot while actively playing on VAC. This is a bannable offense and no amount of mistakes or apologies will make up for that fact.
You can re-appeal in 3 weeks from this reply.