CEB01

contracts/BEBoxMall.sol

@@ -24,6 +24,7 @@ contract BEBoxMall is Ownable, HasSignature {
         public
         onlyOwner
     {
+        require(_paymentReceivedAddress != address(0), 'payment received address can not be zero');
         paymentReceivedAddress = _paymentReceivedAddress;
     }
 

contracts/MarketPlace.sol

@@ -34,6 +34,7 @@ contract Marketplace is Ownable, HasSignature {
     );
 
     function setFeeToAddress(address _feeToAddress) public onlyOwner {
+        require(_feeToAddress != address(0), 'fee received address can not be zero');
         feeToAddress = _feeToAddress;
     }