For what it's worth...
After random crashes in random places since beginning my return, I was entering Federal estimated taxes for 2018. Every time I clicked "Continue", TurboTax crashed. At least 15 tries.
Finally, after restarting TurboTax for the umpteenth time, I went to Online -> Check for Updates, knowing full well there were no available updates. After the check, I could finally click on "Continue" and get past this screen.
I can't say that this technique will help, but it does have a 100% success rate for me! (1 out of 1) Small sample size, but at least I was able to move forward.