I'm glad you're having a better time time ASkyBlock rather than IslandWorld. That other problem really sucks.
Anyway, to do this you'd probably want to use WorldGuard flags to block commands in the spawn region. Block /is and /island and any other commands you don't want them to use. You can put flags anywhere on the server to keep people from using commands where you don't want them to.
I haven't managed servers in a long time so I don't remember the command anymore but basically select a region then just run "/rg flag" and it'll give you a list of flags. I think it's something like blocked-cmds. Learn more about WorldGuard if you're still having problems.
Have a great day.
Anyway, to do this you'd probably want to use WorldGuard flags to block commands in the spawn region. Block /is and /island and any other commands you don't want them to use. You can put flags anywhere on the server to keep people from using commands where you don't want them to.
I haven't managed servers in a long time so I don't remember the command anymore but basically select a region then just run "/rg flag" and it'll give you a list of flags. I think it's something like blocked-cmds. Learn more about WorldGuard if you're still having problems.
Have a great day.