Memory Error 9 531 in Warzone is a rather new bug causing players to crash in the middle of matches. With any new game, there will be problems and Warzone is no exception, and the Coronavirus pandemic has seen an increase of players across the globe playing Fortnite and Warzone.
So if you're seeing the Memory Error 9 531 in Warzone, here's the best ways to try to fix it.
Memory Error 9 531 Warzone: How to Fix Game Crash
First off, if you're playing on PC you need to make sure your graphic drivers are updated. It should be your first step if on PC. If on console, you'll want to do the basics, log off and back in. Try resetting your console, and reset your modem and router. If this problem consists, players have said turning off cross-platform helped significantly.
Lastly, if these don't help, you can always uninstall the game and reinstall it, which I know, is a pain in the butt, but it might be your only option.