1040, standard deduction, and $300 on line 12b. Final Review shows one error (screenshot attached).

1040, standard deduction, and $300 on line 12b. Final Review shows one error (screenshot attached).
1) How do I ged rid of the error message?
2) Can I e-file as is (i.e. without fixing the error), since all numbers look ok?
 
Screenshot 2022-02-28 123205.png