diff --git a/dbs/mongo/mongo.go b/dbs/mongo/mongo.go
index a9de082..9390cf4 100644
--- a/dbs/mongo/mongo.go
+++ b/dbs/mongo/mongo.go
@@ -267,6 +267,9 @@ func (m *MongoDB) LoadOne(id string, collection_name string) (*mongo.SingleResul
 	}
 	filter := bson.M{"_id": id}
 	targetDBCollection := CollectionMap[collection_name]
+	if targetDBCollection == nil {
+		return nil, 503, errors.New("collection " + collection_name + " not initialized")
+	}
 	MngoCtx, cancel = context.WithTimeout(context.Background(), 5*time.Second)
 	//defer cancel()
 
@@ -286,6 +289,9 @@ func (m *MongoDB) Search(filters *dbs.Filters, collection_name string) (*mongo.C
 	opts := options.Find()
 	opts.SetLimit(1000)
 	targetDBCollection := CollectionMap[collection_name]
+	if targetDBCollection == nil {
+		return nil, 503, errors.New("collection " + collection_name + " not initialized")
+	}
 
 	f := dbs.GetBson(filters)
 
diff --git a/models/booking/booking_mongo_accessor.go b/models/booking/booking_mongo_accessor.go
index 6c2134e..355e066 100644
--- a/models/booking/booking_mongo_accessor.go
+++ b/models/booking/booking_mongo_accessor.go
@@ -4,6 +4,7 @@ import (
 	"errors"
 	"time"
 
+	"cloud.o-forge.io/core/oc-lib/dbs/mongo"
 	"cloud.o-forge.io/core/oc-lib/logs"
 	"cloud.o-forge.io/core/oc-lib/models/common/enum"
 	"cloud.o-forge.io/core/oc-lib/models/utils"
@@ -44,7 +45,10 @@ func (a *BookingMongoAccessor) LoadOne(id string) (utils.DBObject, int, error) {
 		now := time.Now()
 		now = now.Add(time.Second * -60)
 		if d.(*Booking).State == enum.DRAFT && now.UTC().After(d.(*Booking).ExpectedStartDate) {
-			return utils.GenericDeleteOne(d.GetID(), a)
+			// Direct raw delete to avoid infinite recursion:
+			// GenericDeleteOne calls a.LoadOne which would re-enter this callback.
+			mongo.MONGOService.DeleteOne(d.GetID(), a.GetType().String())
+			return nil, 410, errors.New("draft booking expired and deleted")
 		}
 		if (d.(*Booking).ExpectedEndDate) == nil {
 			d.(*Booking).State = enum.FORGOTTEN
@@ -62,7 +66,8 @@ func (a *BookingMongoAccessor) GetExec(isDraft bool) func(utils.DBObject) utils.
 		now := time.Now()
 		now = now.Add(time.Second * -60)
 		if d.(*Booking).State == enum.DRAFT && now.UTC().After(d.(*Booking).ExpectedStartDate) {
-			utils.GenericDeleteOne(d.GetID(), a)
+			// Direct raw delete to avoid infinite recursion (same as LoadOne callback).
+			mongo.MONGOService.DeleteOne(d.GetID(), a.GetType().String())
 			return nil
 		}
 		if d.(*Booking).State == enum.SCHEDULED && now.UTC().After(d.(*Booking).ExpectedStartDate) {