Fredrick giving back items problem

So basically i opened a shop in the free-market and i decided that i want to close it, Now when i closed it i was informed that i need to go to Fredrick to get my items back. So i walked up to him and talked to him, I asked to do a "Take out" which means that he should return all of my items that were previously in the shop to me (the owner) and so when i did click the "Take out" button there is a message coming up saying "Duo to the lack of service fee, you were unable to retrieve mesos or items." and that's what he says when i try to take my items back. I tried to restart my client and to fix my account thorough the main site, But it wont help. I even tried to just "Spam" the "Take out" button. Nothing works.

Thank anyone who can help me!

I had a pretty big amount of money-worth items in there and i can't take them.