Assistance Needed: Deprecated API Version Causing Downtime

[MoonRoosterLLC]

Hello,

My client's site is down, and I am looking to confirm if this is the root cause. I am thinking it's likely due to a deprecated API used by a custom app, flagged by Shopify's admin alerts.

https://drinksupercoffee.com/

Any quick advice on updating APIs or fixing this issue would be highly appreciated!

Thank you!