This has to dealt with in Receivables Ledger only. This error has not made any impact on control account.
M Skinner’s account will be understated since an this invoice is still not debited to it. Consequently, H Skinner’s Account will be overstated since an extra invoice is debited which shouldn’t have been there.
For Rectification: Dr M Skinner Receivable Account Cr H Skinner Receivable Account
This will remove the extra invoice from H Skinner’s account & add it to M Skinner’s account.