First, find out which network is your token belongs to. Remember that tokens from different partner chains (Ethereum and Binance) are not interchangeable. If your token on Harmony has “bsc” prefix, it’s BEP20 token from Binance. Bridge it back to Binance as BEP20 (unless it’s not bscBNB, there is BNB button for it). If your token on Harmony has “1” prefix, it’s a token from Ethereum. Bridge it back as ERC20.