'Not a valid ERC-20 token' when adding a custom token
A Not a valid ERC-20 token
error can occur when an incorrect contract address was added as a custom token. Be sure to use the correct contract address, you can find the contract address by following either of the following instructions:
1. Using Ethplorer.io
Enter the name of the token you want to add to your MyEtherWallet interface.
Use the contract address (not the creator address) for the custom token in MyEtherWallet. Be sure to use the correct decimals as well.
2. Using Etherscan.io
Enter the name of the token you want to add to your MyEtherWallet interface.
Use the contract address for the custom token and be sure to use the correct decimals as well.