ok so if you're on desktop, pls go to Forms, if there is no Form 2210 visible in the list, go to Form 1040 penalty line, double-click it, double-click it again on the worksheet to bring up the Form 2210.
That form should explain why you are getting a penalty and if you provide more details on what is happening on that form then maybe folks in this thread will be able to help resolve or explain it.
