"ExecutionError": "Smart contract panicked: assertion failed: Token ID must be unique\n at assert (build/non-fungible-token.js:44)\n at nftMint (build/non-fungible-token.js:951)\n at apply (native)\n at <anonymous> (build/non-fungible-token.js:790)\n at nftMint (build/non-fungible-token.js:988)\n"