App has dropped my subscription

🚧 THIS IS A TICKET MIGRATED FROM UPVOTY. The original ticket and comments will be available for a limited time over at:
https://abrp.upvoty.com/b/report-a-bug/app-has-dropped-my-subscription/
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I have paid my subscription until September 2024, and the app has lost my settings and every time I go to put my setting back in, it keeps asking me to subscribe again. I paid £39.99 already, I do not expect to have to pay again until September (if I want to continue using the service).

Please advise
Thank you