Unable to change server

[Aestre]

Hello there.
I am currently trying to transfer from silver to gold, though I seem to be unable to do that due to a lending trade being active.
The last time I lent my pokèmon, there seemed to be a bug which would not allow the other player to send back my pokèmon through the lending feature (though it was not much of a problem due to the fact that me and the other player are friends so the pokèmon was given back via normal trade), but now, when I visit the dashboard page to switch servers, I get this message.
Is there anything I can do to solve this issue?
Thank you in advance.