USCIS error on permenant resident card

It sometimes happens that USCIS makes an error on your child's permanent resident card (green card). If this happens you need to file the I-90. You DO NOT need to pay the fee. Be sure to mark that it is an error by USCIS. Here is the link to the instructions.
This is the form I-90.

IF this does happen, take care of it right away. It took 3 months for us to get our new card.