/is makeleader and 2 ppl in my island but only 1 is!!! And i cant leave my island or restart it!

I have been wanting to leave my island for awhile and i tried /is makeleader and it wont work, i tried /is leave and it wont work, it says must kick all players in island, when im only in it. Same with /is restart. Help pls?

 

These are some pictures about this problem.

 

so could someone just help me? like kick me from my island or something, Thanks if u could.

 

Ehm.... Still cant leave my island.... This is getting serious. i really want to join someones island (socool121) and i cant because uSkyBlock is being glitchy.