Chest bug in cells

[MasterScare]

What is the bug: In my cells I accidently unrented it then I re rented it and I started place new chest and I got a message saying I can't place any more
Where is this bug located: In cell 50
How can we recreate it: Not sure

link:
http://imgur.com/a/zJ0Z5

[MasterScare]

Sorted now had to wait befor it was fixed