Error loading

Summary

i want to join the session but:
Als versucht wurde, das Paket /Game/Effects/Fort_Effects/Gameplay/Pickups/Effects/NS_Pickup_RareAmbient zu laden, war das abhängige Paket /Game/Effects/Niagara/DynamicInputs/TimeOfDay/FNTimeOfDayScalar nicht verfügbar. Weitere erläuternde Informationen folgen:
FPackageName: Skipped package /Game/Effects/Niagara/DynamicInputs/TimeOfDay/FNTimeOfDayScalar has a valid, mounted, mount point but does not exist either on disk or in iostore. The uncooked file would be expected on disk at ‘C:/Program Files/Epic Games/Fortnite/FortniteGame/Content/Effects/Niagara/DynamicInputs/TimeOfDay/FNTimeOfDayScalar.uasset’. Perhaps it has been deleted or was not synced?

how to fix this error?

see

Zur Erinnerung: Der alte Tageszeit-Manager und das Himmelskuppel-Gerät werden entfernt

Der Tageszeit-Manager und das Himmelskuppel-Gerät aus Saison 14 des Fortnite-Kreativmodus werden mit einer bevorstehenden Veröffentlichung entfernt. Diese Änderung betrifft Inseln, die das Himmelskuppel-Gerät für benutzerdefinierte Beleuchtung verwenden.

English from release notes for 33.10

Reminder: Retiring the Old Time of Day Manager and Skydome Device

The Fortnite Creative S14 Time of Day Manager (TODM) and Skydome device are being retired in an upcoming release. This change affects islands using the Skydome device to create custom lighting.

It is recommended to convert all Islands you wish to preserve to the new TODM now. This will give you ample time to adjust the visuals and ensure the conversion is working properly for you.

Converting your island to the new TODM is a one-way conversion. Back up your island before upgrading.