Since this seems to be the main thread, I'm reposting this here for visibility.
I'm experiencing the exact same problem on a Mac running OSX High Sierra. As soon as I try to sim a day, the game crashes without warning.
I'm inbetween award season and salary arbitration if that helps.
Processor: 3.1GHz Intel Core i7
Memory: 16GB
Graphics: Radeon Pro 560 4GB & Intel HD Graphics 630 1.5 GBs
On creation of a new Quick Start league, when simming in between April 3rd and 4th, the game SEGFAULTs, with the following dump:
https://pastebin.com/j2HtTdqs.
When I get home tonight, I'll see if this is the same on my Windows 10 Alienware.