Submitted by JMukesh
 referenceContractAddress is used in createMarket() to create newAddress  for the market , a necessary check should be there that referenceContractAddress exist or not, because if createMarket() is called before setReferenceContractAddress(), address(0) will be passed as referenceContractAddress , since addMarket() of treasury and nfthub does not have address validation for the market. See RCFactory.sol L714.
Recommend adding a condition to check the referenceContractAddress
Splidge (Reality Cards) confirmed and patched:
