The Ps3 Application Has Likely Crashed You Can Close It Rpcs3 Instant

Always verify your game’s status on the RPCS3 Compatibility List. If a game is marked as "Ingame" rather than "Playable," it may have known crashing issues that haven't been solved yet. 4. Administrative and Permission Fixes (Windows)

Some games will trigger this warning at the same point due to missing emulation features: Always verify your game’s status on the RPCS3