They set a minimum buy price. Current minimum buy price is 4 sats but no one is willing to buy BSM with this price.
Stocks.exchange uses 8 digits price. meaning the absolute minimum buy price is 1 sat. also trading with 1 sat quantization is very inconvenient.
I suggest that the devs should add BSM-LTC pair and don't set any minimum buy price. Let the market determine the price.
Update ur wallet-cli from header. U use old version.
I am not sure whether nanex.co exchange supports Cryptonote algorithm or not, but this one is young, free listing fees. You should ask them for detailed listing requirements and try to ask for listing Bitsum on the one.
Hope my link help Bitsum to be listed on one more exchange.
https://nanex.co/exchange/BTCNANOAdditionally, recent days, we only saw direct buy orders. That's strange price orders on Stocks.exchange.
https://stocks.exchange/trade/BSM/BTC