Unfortunately this is just the way the plugin has to be configured to prevent malicious players from removing your entire base.

Admins will not log in and remove things for you. If it is detrimental to game play (ie. I cannot even get to our TC we hid it in honeycomb and I cannot remove the wall) we can get involved only if the player who owns the entity you want us to destroy puts in a support ticket themselves and requests us to do so. They would need to tell us which entity to destroy and where.

Otherwise we cannot assist you. It opens us up to a lot of liability destroying things based on another player's request. Even if we know you are teamed with them it still leaves us open to liability we are not willing to risk.

Get your friend to log in and take care of the removal.