The Sims team have released an emergency update to fix some issues that had Arisen in the latest update for the game.
Now onto the patch notes:
Via The Sims Forums
UPDATE: 4/19/19 – PC 1.51.77.1020 / Mac 1.51.77.1220
Hi Simmers,
We wanted to swiftly address some unintentional issues that popped up following the 4/16 game update.
Fixed an issue where custom text was not always displaying properly in-game.
Fixed an issue where NPC invites to festivals or to residences were sending Sims to an incorrect destination.
There is still a lingering issue regarding invites to events in Get Famous, such as the talent showcase, and celebrity sightings. We are continuing to investigate those for a future update.
Fixed an issue where Mac players on certain older versions of OS X were unable to launch the game. As a result, we rolled back a fix that was done for Mac players on 64-bit systems that eliminated a false error message which said, “The Sims 4 is not optimized for your Mac and needs to be updated.”
-SimGuruGraham