TestFlight download always fails without error mesage

When trying to download TestFlight on iOS 17.2.1 the "Get" button first turns into a loading symbol, but turns back to its original form after some while. There is no error message whatsoever unfortunately. This has happend many times now, and Im not sure how to proceed here, any help is greatly appreciated!

TestFlight download always fails without error mesage
 
 
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