not being able to claim land on skygrid

So in skygrid I have tried everythig to claim my land and I can't get it claimed I had my friend try to break blocks and he could break blocks every time I tried to place the spomhe in every place you can think of the roof the walls the floors everywhere and yet he could still break my blocks

 

@Yin

 

Do you know if there is any sponges placed by your friend, or any sponges placed by somebody else?

 

I have messaged CypriotMerks about this thread so he can help. Please wait. Because there is nothing i can do. Good luck!