fix unexpired object error

ReallifeGamemode.Client/core/rage-mp/entities.ts

@@ -8,13 +8,22 @@ class RageEntity implements IEntity {
     public __attachmentObjects: any[];
 
     get id(): number {
-        if (!this.entity) {
+        if (!this.entity || !this.exists()) {
             return null;
         }
 
         return this.entity.id;
     }
 
+    exists() {
+        switch (this.entity.type) {
+            case "player":
+                return mp.players.exists(this.entity as PlayerMp);
+            case "vehicle":
+                return mp.vehicles.exists(this.entity as VehicleMp);
+        }
+    }
+
     get attachments(): number {
         var color = this.entity.getVariable("nametagColor");
         if (!color)