Error when updating Lead category

[ZackElias]

I have deployed the script successfully but I noticed an issue when trying to update lead category.

Any ideas ?

Error:

Category matching query does not exist.
Request Method: POST
Request URL: http://127.0.0.1:8000/leads/1/category/
Django Version: 3.1.4
Exception Type: DoesNotExist
Exception Value:
Category matching query does not exist.
Exception Location: C:\Users\MeCD\AppData\Local\Programs\Python\Python39\lib\site-packages\django\db\models\query.py, line 429, in get
Python Executable: C:\Users\MeCD\AppData\Local\Programs\Python\Python39\python.exe
Python Version: 3.9.2
Python Path:
['C:\getting-started-with-django-main',
'C:\Users\MeCD\AppData\Local\Programs\Python\Python39\python39.zip',
'C:\Users\MeCD\AppData\Local\Programs\Python\Python39\DLLs',
'C:\Users\MeCD\AppData\Local\Programs\Python\Python39\lib',
'C:\Users\MeCD\AppData\Local\Programs\Python\Python39',
'C:\Users\MeCD\AppData\Local\Programs\Python\Python39\lib\site-packages']
Server time: Tue, 27 Apr 2021 14:00:29 +0000

[ZackElias]

I added specific value and now it works

[Tanujshriyan]

What specific value?