Hello Karina,
If you record an invoice by mistake in an invoice register journal you can open an invoice approval journal, select the wrong invoice recorded, select cancel and then post the Journal to correct your wrong entry.
Yet, you write that you upload an invoice, which sounds like a system modification to me. I am not sure how you upload your invoice and what other processes this upload triggers. For that reason, I strongly recommend that you get into contact with your AX-Consultant or the company that implemented the invoice upload functionality in your system to get things corrected in the way required by your company's AX system.
All the best,
Ludwig