Unfinished trade from previous league stuck in the new one

First time posting, reference number is 876.617.847.

In the previous league I had a trade, 1 chaos orb for 36 uncut support gem level 5 and it shows here but it is grey-ed out. I can't do anything about it and I deleted all my other characters.

How do I get rid of it ? It takes 1 space slot for trade