Unable to unlink founds

Hi Guys, I had purchased some ksm a while ago and I staked it for 7 days. How ever, after that I have tried several times to unlink my ksm from the stake in order to unbond the found and take the profit. Nevertheless, I have never been able to do it. The first attempts that I did was unsuccessful because the answer from the system was that it was not posible to unlink. I this moment I’m trying again and after I do the process to unbond, the system just keep singing and that’s it. I don’t know what to do most likely I will lose my money. If some body knows the solution for this please let me know.