1099-R box 1a error

I have a 1099-R from my investment firm that has a value of $0.00 in Box 1a, Box 2b has Total Distribution checked, and there is a value in Box 5 that is greater than 0. The form was imported from the institution, and the entry matches the form I reviewed on their site. But the Box 1a value is being flagged as an error and preventing me from e-filing. How can I get past this without creating a mismatch with the form submitted to the IRS?

posted