This error occurs to users of Metamask who have NFTs that were added as ERC20 token by an older version of Metamask.
In order to fix this issue, you need to delete the LIITA from your asset list in Metamask.
Do to do so:
1. Open the Metamask extension, and under "Assets" find LIITA
2. Click on LIITA and the message below will appear. Select yes and enter one of your token IDs.
This will then remove LIITA as a token visible on the Asset list (don't worry, they're still in your wallet!), and you'll now be able to list them on the Particle Marketplace.