Duplicate Selling stuff crashes the game

[AAO278]

Describe the bug you experienced here.

What I expected to happen:
...I tried to sell some stuff for money

What actually happened:
...
The game crashed
Steps to reproduce:
1. ...
2. ...
...

(Add a crash log here if available and enclose it in the code tag with this button:

)

 

[jianmingyong]

Should be same.
[Indev 0.52.1] New Shop Interface Bug

 

[Fanta]

...

Should be same.
[Indev 0.52.1] New Shop Interface Bug

In case it is not, we need more detail on what cause the crash.
Also crash log, yea, we need that too.