The IRA interview should tell you why. It probably entered a 5329 for with a penalty. You can print all forms and worksheets and see what line on the 5329 the entry is. I would guess, because of an excess contribution that exceeds your taxable compensation. (Or your filing status is Married Fining Separately and you lived with your spouse.)
The most you can contribute to all of your traditional and Roth IRAs is the smaller of:
For 2018, $5,500, or $6,500 if you’re age 50 or older by the end of the year; or
your taxable compensation for the year.
For 2019, $6,000, or $7,000 if you’re age 50 or older by the end of the year; or
your taxable compensation for the year.
(Taxable compensation is generally wages that you worked for - W-2 or net self-employed income minus the deducible part of the SE tax, but can include commissions, certain alimony and separate maintenance, and nontaxable combat pay ).
See IRS Pub 590A "What is compensation" for details:
https://www.irs.gov/publications/p590a#en_US_2018_publink1000230355
See this IRS article for Roth contribution limits:
https://www.irs.gov/retirement-plans/roth-iras
**Disclaimer: This post is for discussion purposes only and is NOT tax advice. The author takes no responsibility for the accuracy of any information in this post.**
