Opensea won't load in the provided metadata of ERC-721 tokens

Question

I created 3 ERC-721 tokens and listed them on the opensea testnet. The problem is that for some reason opensea won't load in the metadata I provided.

ERC-721 token contract on the rinkeby etherscan: https://rinkeby.etherscan.io/address/0xceb07f4fd764368fbb5d6ce4b53a6877b38fd28d

Link to one of the NFT's on opensea: https://testnets.opensea.io/assets/0xceb07f4fd764368fbb5d6ce4b53a6877b38fd28d/2

The contract clearly has a tokenURI function. When you click on the IPFS it returns link you can see the metadata which contains some attributes and a link to the Image.

Yet opensea won't load in the image nor the rest of the metadata.

Any help would be greatly appreciated.

Answer 1

Solution: The metadata used single quotes('), but json only uses double quotes("). So Opensea can't read the meta data because it's not valid json.