diff --git a/apis_core/apis_entities/forms.py b/apis_core/apis_entities/forms.py
index a94b183e6..85b11f5a0 100644
--- a/apis_core/apis_entities/forms.py
+++ b/apis_core/apis_entities/forms.py
@@ -8,8 +8,8 @@
 from django.core.validators import URLValidator
 from django.urls import reverse
 
-from apis_core.apis_metainfo.models import Uri, Collection
-from apis_core.utils import DateParser, caching, settings as apis_settings
+from apis_core.apis_metainfo.models import Uri
+from apis_core.utils import caching, settings as apis_settings
 from apis_core.utils.settings import get_entity_settings_by_modelname
 from .fields import ListSelect2
 
diff --git a/apis_core/apis_entities/models.py b/apis_core/apis_entities/models.py
index f37c97188..8a0ce0e70 100644
--- a/apis_core/apis_entities/models.py
+++ b/apis_core/apis_entities/models.py
@@ -1,19 +1,14 @@
 import re
-import unicodedata
 
 from django.contrib.contenttypes.models import ContentType
-import reversion
 from django.conf import settings
 from django.contrib.auth.models import Group
-from django.db import models
 from django.db.models.signals import post_save
 from django.dispatch import receiver
 from django.urls import reverse
-from model_utils.managers import InheritanceManager
 from django.db.models.query import QuerySet
 
 from apis_core.utils import caching
-from apis_core.utils import DateParser
 from apis_core.apis_metainfo.models import RootObject
 from apis_core.apis_relations.models import TempTriple
 from apis_core.apis_entities import signals
diff --git a/apis_core/apis_metainfo/models.py b/apis_core/apis_metainfo/models.py
index 647ab085a..1c638ad83 100644
--- a/apis_core/apis_metainfo/models.py
+++ b/apis_core/apis_metainfo/models.py
@@ -207,7 +207,7 @@ def clean(self):
                     self.root_object = obj
                 else:
                     raise ImproperlyConfigured(
-                        f"{uri}: found model <{model}> and attributes <{attributes}>"
+                        f"{self.uri}: found model <{model}> and attributes <{attributes}>"
                     )
             except Exception as e:
                 raise ValidationError(f"{e}: {self.uri}")
diff --git a/apis_core/apis_relations/rel_filters.py b/apis_core/apis_relations/rel_filters.py
index 8cda73ca1..2ec977dc4 100644
--- a/apis_core/apis_relations/rel_filters.py
+++ b/apis_core/apis_relations/rel_filters.py
@@ -1,6 +1,3 @@
-import operator
-from functools import reduce
-
 import django_filters
 from dal import autocomplete
 from django.conf import settings
@@ -93,8 +90,6 @@ def get_filters(model, exclude=False, include=False, include_parents=False):
 
 def get_generic_relation_filter(entity):
     class GenericListFilter(django_filters.FilterSet):
-        # search = django_filters.CharFilter(method='search_filter_method')
-
         def name_label_filter(self, queryset, name, value):
             """
             Filter for including the alternative names in the names search.\
@@ -156,15 +151,6 @@ def wildcard_filter(self, queryset, name, value):
                 f += "exact"
             return queryset.filter(**{f: value})
 
-        def search_filter_method(self, queryset, name, value):
-            cls = queryset.model.__name__
-            sett_filters = getattr(settings, "APIS_RELATIONS", {})
-            if cls.lower() in sett_filters.keys():
-                filter_attr = sett_filters[cls.lower()].get("search", ["name"])
-                query = reduce(
-                    operator.or_, [Q(**{attr: value}) for attr in filter_attr]
-                )
-
         class Meta:
             # model = AbstractRelation.get_relation_class_of_name(entity)
             model = None
diff --git a/apis_core/utils/helpers.py b/apis_core/utils/helpers.py
index a731f7a55..31a922556 100644
--- a/apis_core/utils/helpers.py
+++ b/apis_core/utils/helpers.py
@@ -3,7 +3,6 @@
 import inspect
 import itertools
 import logging
-from typing import Type
 
 
 from apis_core.apis_relations.models import Property, TempTriple