function confirmUnregisteringServer(uint _serverIndex) public {
        In3Server storage server = servers[_serverIndex];
        
        require(server.unregisterCaller != address(0x0) && server.unregisterTime < now, "Only the caller is allowed to confirm");

        uint payBackOwner = server.deposit;
        if (server.unregisterCaller != server.owner) {
            payBackOwner -= server.deposit / 5;  
            server.unregisterCaller.transfer(server.unregisterDeposit + server.deposit - payBackOwner);
        }

        if (payBackOwner > 0)
            server.owner.transfer(payBackOwner);

        removeServer(_serverIndex);
    }