function deleteClaim(address _lostAddress) public onlyOwner(){
        Claim memory claim = claims[_lostAddress];
        require(claim.collateral != 0, "No claim found");
        delete claims[_lostAddress];
        claim.claimant.transfer(claim.collateral);
        emit ClaimDeleted(_lostAddress, claim.claimant, claim.collateral);
    }