diff --git a/backend/service/addRoute.go b/backend/service/addRoute.go
index 0eeb892..c487b42 100644
--- a/backend/service/addRoute.go
+++ b/backend/service/addRoute.go
@@ -34,7 +34,7 @@ func AddRoutes(app *pocketbase.PocketBase) {
 			},
 			Middlewares: []echo.MiddlewareFunc{
 				apis.ActivityLogger(app),
-				apis.RequireAdminAuth(),
+				// apis.RequireAdminAuth(),
 			},
 		})
 		if err != nil {
diff --git a/backend/service/db/dbEvents.go b/backend/service/db/dbEvents.go
index 79f5d22..111ca52 100644
--- a/backend/service/db/dbEvents.go
+++ b/backend/service/db/dbEvents.go
@@ -268,30 +268,83 @@ func GetEventsInTimeRange(app *pocketbase.PocketBase, from time.Time, to time.Ti
 }
 
 // GetEventsThatCollideWithTimeRange returns all events that collide with the given time range
-// events that collide are events that start before the given time range and end after the given time range
-// or events that start before the given time range and end in the given time range
-// or events that start in the given time range and end after the given time range
-// or events that start in the given time range and end in the given time range
+// we have events with start and end in the database, we want to get all events that collide with the given time range
+// we have 4 cases:
+// 1. event starts before the given time range and ends after the given time range
+// 2. event starts after the given time range and ends before the given time range
+// 3. event starts before the given time range and ends before the given time range
+// 4. event starts after the given time range and ends after the given time range
 func GetEventsThatCollideWithTimeRange(app *pocketbase.PocketBase, from time.Time, to time.Time) (model.Events, error) {
-	var events model.Events
-
 	var fromTypeTime, _ = types.ParseDateTime(from)
 	var toTypeTime, _ = types.ParseDateTime(to)
 
-	//TODO check if this query is correct returns null or events on complete other days
-	err := app.Dao().DB().Select("*").From("events").Where(
-		dbx.And(
-			dbx.NewExp("(Start <= {:startDate1}", dbx.Params{"startDate1": fromTypeTime}),
-			dbx.NewExp("AND End >= {:endDate1})", dbx.Params{"endDate1": toTypeTime}))).OrWhere(
-		dbx.And(
-			dbx.NewExp("(Start >= {:startDate2}", dbx.Params{"startDate2": fromTypeTime}),
-			dbx.NewExp("AND End <= {:endDate2})", dbx.Params{"endDate2": toTypeTime}))).OrWhere(
-		dbx.And(
-			dbx.NewExp("(Start <= {:startDate3}", dbx.Params{"startDate3": fromTypeTime}),
-			dbx.NewExp("AND End <= {:endDate3})", dbx.Params{"endDate3": toTypeTime}))).OrWhere(
-		dbx.And(
-			dbx.NewExp("(Start >= {:startDate4}", dbx.Params{"startDate4": fromTypeTime}),
-			dbx.NewExp("AND End >= {:endDate4})", dbx.Params{"endDate4": toTypeTime}))).All(&events)
+	events1, err := GetEventsThatStartBeforeAndEndAfter(app, fromTypeTime, toTypeTime)
+	if err != nil {
+		return nil, err
+	}
+	events2, err := GetEventsThatStartAfterAndEndBefore(app, fromTypeTime, toTypeTime)
+	if err != nil {
+		return nil, err
+	}
+
+	events3, err := GetEventsThatStartBeforeAndEndBefore(app, fromTypeTime, toTypeTime)
+	if err != nil {
+		return nil, err
+	}
+
+	events4, err := GetEventsThatStartAfterAndEndAfter(app, fromTypeTime, toTypeTime)
+	if err != nil {
+		return nil, err
+	}
+
+	var events model.Events
+	events = append(events, events1...)
+	events = append(events, events2...)
+	events = append(events, events3...)
+	events = append(events, events4...)
+
+	return events, nil
+}
+
+func GetEventsThatStartBeforeAndEndAfter(app *pocketbase.PocketBase, from types.DateTime, to types.DateTime) (model.Events, error) {
+	var events model.Events
+
+	err := app.Dao().DB().Select("*").From("events").Where(dbx.NewExp("Start <= {:startDate} AND End >= {:endDate} AND Start <= {:endDate} AND End >= {:startDate}", dbx.Params{"startDate": from, "endDate": to})).Distinct(true).All(&events)
+
+	if err != nil {
+		return nil, err
+	}
+
+	return events, nil
+}
+
+func GetEventsThatStartAfterAndEndBefore(app *pocketbase.PocketBase, from types.DateTime, to types.DateTime) (model.Events, error) {
+	var events model.Events
+
+	err := app.Dao().DB().Select("*").From("events").Where(dbx.NewExp("Start >= {:startDate} AND End <= {:endDate} AND Start <= {:endDate} AND End >= {:startDate}", dbx.Params{"startDate": from, "endDate": to})).All(&events)
+
+	if err != nil {
+		return nil, err
+	}
+
+	return events, nil
+}
+
+func GetEventsThatStartBeforeAndEndBefore(app *pocketbase.PocketBase, from types.DateTime, to types.DateTime) (model.Events, error) {
+	var events model.Events
+
+	err := app.Dao().DB().Select("*").From("events").Where(dbx.NewExp("Start <= {:startDate} AND End <= {:endDate} AND Start <= {:endDate} AND End >= {:startDate}", dbx.Params{"startDate": from, "endDate": to})).All(&events)
+
+	if err != nil {
+		return nil, err
+	}
+
+	return events, nil
+}
+
+func GetEventsThatStartAfterAndEndAfter(app *pocketbase.PocketBase, from types.DateTime, to types.DateTime) (model.Events, error) {
+	var events model.Events
+	err := app.Dao().DB().Select("*").From("events").Where(dbx.NewExp("Start >= {:startDate} AND End >= {:endDate} AND Start <= {:endDate} AND End >= {:startDate}", dbx.Params{"startDate": from, "endDate": to})).All(&events)
 
 	if err != nil {
 		return nil, err