App Store Error 3 during Pro subscription purchase

Hello Infinite Flight Team!
I am trying to purchase the Infinite Flight Pro subscription with the current promotion, but I keep getting an “App Store Error 3” popup.
I’ve already rebooted my phone, reinstalled the game, etc.
I have attached a screenshot of the error. Thank you for your help!

Device: Apple iPhone 17 Pro
Operating system: IOS Beta 27.0

Hello! Welcome to the community

For this problem I’d suggest connecting apple support for a refund or contact [email protected]

Hey, this error is uncommon, and it could very likely be a bug in the iOS 27 Beta (which we don’t fully support yet).

I’d wait until the next iOS beta or downgrade if you want to access the offer now

You could subscribe from the website

https://community.infiniteflight.com/t/infinite-flight-prices-shown-different/1209410/9