Check out the other very similar thread where this well known issue is discussed, especially this post suggesting a solution Aurora store stopped working after latest e/OS update May 9 2023 - #20 by smu44.
In the case of App Lounge it may be helpful to
Settings > Apps and notifications > See all … apps > App Lounge > Storage & cache > Clear storage | Clear cache
… and / or – “try again later”. App Lounge has a certain dependency on Aorora App Lounge - know all about it.
App Lounge was working for me fine an hour ago.