If these are bounty tokens, then you will not be able to exchange them for real tokens, since for this purpose some time was allotted for the exchange of tokens.
But you can try to write about your problem to the developers of this project in their telegram chat.
Bounty tokens need to be sent to Gopax. If wallet say zero balance how can I send it to Gopax? There is no logic here.
I wrote e-mail and from Twitter to Mossland team. They didn't answer. I don't know if they have Telegram group or any other information desk.