Troubleshooting

I found the place to enter the info. The problem is that even though my child's Schedule 11 indicates there is an amount available to transfer to another individual, entering that amount in TurboTax gives this error message "Maximum transferable amount for CHILD is $0.00". There is an amount owing on my tax return, therefore, I thought I should be able to have this reduced by including the transferable amount. Why the error message from TurboTax?