Indonesia is not among the banned countries in this casino and can even access the casino but when you click on Sportsbook “Sorry, we are not available for ID right now” so what is the difference between other games and sportsbook is actually a bit confusing.
Are there other regions the same as me?
Check out this picture.

Just tried it and I get the same notification message, if I have to guess maybe it is due to the terms own by the sportsbook provider used by luckyfriends.
I'm not that familiar with sportsbook provider so I'm guessing only because maybe some sportsbook providers also has country restriction.
This is also the first time I see a gambling site with casino games and sportsbook but a player is not able to play both because of the reason as mentioned in the above message.