Edit: I misunderstood the question, it must be because of your wallet, which one are you using? Your wallet seems to have a bug that in creating non-standard signatures. Since it got confirmed, you don't have to worry about it now, but better update the wallet so it doesn't happens again. Would be much easier to help if next time you can provide the tx id.
I thought it has something to do with double spending however the sender explained that it's because he is using a multi-signature address to send the funds . I have the funds now and everything is fine ,thx