There are various reasons for this issue like below shows.
The problems to cause "Can't sync iphone to computer. Error (13019) occurred" can be various. You can refer to the following aspects to check and fix this issue.
1. Maybe your iTunes version is outdated and you need to update it to the latest version to ensure it to work normally.
2. Maybe there is something wrong with the USB cord you are using. You can change a new cable to have a try.
3. Maybe your computer system needs to update. You can check out your Windows system and access to new updates to handle this issue.
4. Maybe your iPhone system version needs to be updated. You can go to "General" tab on iPhone to check for iOS updating
and follow the on-screen instructions to make it.
If you fail to settle "Can't sync iphone to computer. Error (13019) occurred" by trying the 4 methods shown above, you can continue to read the below instruction to help you to realize your goal.
Check: How to Fix iTunes Not Recognizing iPhone in Windows 10