Update models.py to correct Donor LP group reference

It looks like this is trying to retrieve donor status by checking if players are part of the "donator" group in LP. Wondering if updating this name to "donor" which matches the current LP group would fix this?

models.py

@@ -128,7 +128,7 @@ class Player(models.Model):
 
         try:
             from django_luckperms.models import LuckPermsPlayerPermissions as lppp
-            donator = lppp.objects.filter(permission='group.donator', uuid=self.uuid)
+            donator = lppp.objects.filter(permission='group.donor', uuid=self.uuid)
             if donator.exists():
                 expiry = donator.first().expiry
                 if expiry > 0: