How to connect to self-hosted s3 bucket such as minio


I have a s3 bucket hosted by myself using minio.
When trying to connect with the ios cryptomator app, it keeps saying it cannot connect with my custom url such as

I also tried to format the url such as but it still refuse to connect.

Can you let me know what is the correct step to connect or is there any documentations I can find? I am also able to use a lot of third parties to connect but not cryptomator on ios.