diff --git a/crudkit/core/service.py b/crudkit/core/service.py
index b13bb81..7c40320 100644
--- a/crudkit/core/service.py
+++ b/crudkit/core/service.py
@@ -1,7 +1,7 @@
 from typing import Any, Callable, Type, TypeVar, Generic, Optional, Protocol, runtime_checkable, cast
 from sqlalchemy import and_, func, inspect, or_, text
 from sqlalchemy.engine import Engine, Connection
-from sqlalchemy.orm import Load, Session, selectinload, with_polymorphic, Mapper, RelationshipProperty, ColumnProperty
+from sqlalchemy.orm import Load, Session, with_polymorphic, Mapper, RelationshipProperty
 from sqlalchemy.orm.attributes import InstrumentedAttribute
 
 from crudkit.core.base import Version
@@ -232,7 +232,7 @@ class CRUDService(Generic[T]):
         total = None
         if include_total:
             base = self.session.query(getattr(root_alias, "id"))
-            if self.supports_soft_delete and not _is_truthy(params.get("include_deleted")):
+            if self.supports_soft_delete and not _is_truthy((params or {}).get("include_deleted")):
                 base = base.filter(getattr(root_alias, "is_deleted") == False)
             if filters:
                 base = base.filter(*filters)
@@ -279,7 +279,7 @@ class CRUDService(Generic[T]):
         for col in mapper.primary_key:
             try:
                 pk_cols.append(getattr(root_alias, col.key))
-            except ArithmeticError:
+            except AttributeError:
                 pk_cols.append(col)
 
         return [*order_by, *pk_cols]