No se pudo transferir ether al contrato inteligente

Estoy probando un contrato inteligente y necesito enviarle algo de éter, pero cuando intento hacerlo aparece el error "Parece que esta transacción fallará. Si la envía, puede consumir todo el gas que proporciona". ¿Alguien podría sugerir cómo solucionarlo?

Aquí está el código fuente, la clase base de Oraclize se omite porque creo que no importa, pero todavía hay muchas cosas relacionadas con Oraclize, lo siento:

contract AdContractTest3 is usingOraclize {
    string public calc_script_base_url = "http://5.45.80.18/ad-price-calculator.php";
    uint public total_price_in_szabo;
    uint public szabo_per_placement;
    uint public szabo_per_view;
    address public client;
    address public blogger;

    event LogPriceUpdated(string price);
    event LogNewOraclizeQuery(string description);
    event LogNotEnoughEther();
    event LogEtherSent();
    event LogOnDeposit(address sender, uint amount);

    function AdContractTest3(uint price_in_szabo_per_placement, uint price_in_szabo_per_view, address client_address, address blogger_address) public payable {
        szabo_per_placement = price_in_szabo_per_placement;
        szabo_per_view = price_in_szabo_per_view;
        client = client_address;
        blogger = blogger_address;
    }

    function strConcat(string s1, string s2, string s3, string s4, string s5, string s6, string s7) internal pure returns (string)
    {
        return strConcat(strConcat(s1, s2, s3, s4), strConcat(s5, s6, s7));
    }

    function __callback(bytes32 myid, string result) public {
        require(msg.sender == oraclize_cbAddress());
        myid; // Silence compiler warnings
        total_price_in_szabo = parseInt(result);
        LogPriceUpdated(result);
    }

    function updatePrice(string video_url) public payable returns(string) {
        if (oraclize_getPrice("URL") > this.balance) {
            LogNewOraclizeQuery("Oraclize query was NOT sent, please add some ETH to cover for the query fee");
        } else {
            var url = strConcat(calc_script_base_url, "?price_in_szabo_per_placement=", uint2str(szabo_per_placement), "&price_in_szabo_per_view=", uint2str(szabo_per_view), "&video_url=", video_url);
            oraclize_query("URL", strConcat("json(", url, ").total_price_in_szabo"));
            var log_msg = strConcat("Oraclize query '", url, "' was sent, standing by for the answer...");
            LogNewOraclizeQuery(log_msg);
        }
    }

    function payForWork() public {
        if (total_price_in_szabo * 1 szabo > this.balance) {
            LogNotEnoughEther();
        } else {
            blogger.transfer(total_price_in_szabo * 1 szabo);
            LogEtherSent();
        }
    }

    function onDeposit() public payable {
        LogOnDeposit(msg.sender, msg.value);
    }
}