What type of error did they make in the COPR and visa for your child? They mixed up the pictures for my girls and just got a response I need to courier our
Hi - in my case it was an error in my kids' passports (wrong names in the machine readable zones) which meant the names on the COPRs and visas were wrong. I actually had to get both my kids new passports before requesting documents again.
In my case, since the error was not IRCCs (but from my country's government), I had to pay a reissue fee for the COPRs online before I submitted the documents. One thing to be careful about is that if even one person has an issue, you need to submit everyone's passports and COPRs. If you are from a visa exempt country, you may possibly not need to submit passports. So even though documents were fine for my spouse and me, I had to submit all our passports and COPRs and they cancelled and reissued both visas and COPRs for everyone.
I think your message got cut off, so if you meant to ask something I didn't address, please feel free to reply.