2019 tax filing was rejected due to incorrect 2018 AGI, but 2018 AGI is correct

2019 tax filing was rejected due to "incorrect 2018 AGI".  But 2018 AGI is correct according to my pdf of my taxes from turbotax.  I assume the issue is that my 2018 taxes were filed, then rejected (b/c my now ex and I both tried to claim our kids, well, and she must have beaten me to file her taxes first last year).  

 

I filed my 2019 taxes before attempting to fix the 2018 ones (still haven't done the 2018 ones b/c I'd owe $, essentially the $2k she "stole" by claiming the child).  A related question is, "have I now not filed my 2018 taxes b/c of the rejection"?   

 

Suggestions on what to do and in what order?