For UNPREDICTABLE_GAS_LIMIT errors on ghostNFT platform, depending on what you are trying to do, you either:
- need to have created already your NFT collection on NFTs2me and mint AT LEAST 1 NFT from the collection there, in order to be able to list the collection successfully on ghostNFT afterwards.
- already claimed the free gNFT for the task and are unable to claim again.