GamePigeon is not working on my iPhone running iOS 26.0.1

i updated my phone to ios 26.01 and my gamepigeon is not working. when i go onto the app store it says i have it downloaded but it won’t let me actually use it. when i press open it takes me to messages but won’t let me try and send a game

[Re-Titled by Moderator]

Original Title: Gamepigeon not working on ios 26.01 update