function sendTokensManually(address _to, uint256 ethAmount, uint multiplier) public onlyOwner {
        require(multiplier < 6); 
        require(_to != address(0) && now <= endDate + 3 days); 
        uint256 tokens = ethAmount.div(tokenPrice).mul(multiplier);
        keeppetToken.sendTokens(_to, tokens);
        stat.currentFundraiser += tokens;
        stat.additionalEthAmount += ethAmount;
        stat.txCounter += 1;
    }