iTunes error 14
Hello, my iPhone was nearly at full capacity and was getting a bit slow so I restarted it. It then got stuck, and only showed the apple logo. I called Apple and was told that I should try to update it using iTunes. Error 14 keeps on coming up (presumbly because I do not have any further storage for the update) and my phone is now not working. Is there anybody else in the same boat? Thanks.
iPhone X, iOS 13