Somewhat fixed huds and stuff, not 100%

code/datums/status_effects/status_effect.dm

@@ -35,8 +35,9 @@
 	next_tick = world.time + tick_interval
 	if(alert_type)
 		var/atom/movable/screen/alert/status_effect/A = owner.throw_alert(id, alert_type)
-		A.attached_effect = src //so the alert can reference us, if it needs to
-		linked_alert = A //so we can reference the alert, if we need to
+		if(istype(A))
+			A?.attached_effect = src //so the alert can reference us, if it needs to
+			linked_alert = A //so we can reference the alert, if we need to
 	START_PROCESSING(SSstatus_effects, src)
 	return TRUE