@ -252,7 +252,7 @@ public enum SimulationManager {
continue;
}
if (mine.isActive && (LocalDateTime.now().isAfter(closeTime) || LocalDateTime.now().isBefore(openTime))) {
if (mine.isActive && mine.lastClaimer != null && (LocalDateTime.now().isAfter(closeTime) || LocalDateTime.now().isBefore(openTime))) {
mineWindowClose(mine);