Internal Server Error on Deleting Non-Existent Marketing Campaign via `DELETE /api/v1/settings/marketing/campaigns/{id}`

[sagarkumar-webkul]

Title:

Internal Server Error on Deleting Non-Existent Marketing Campaign via DELETE /api/v1/settings/marketing/campaigns/{id}

Description:

When attempting to delete a marketing campaign that does not exist (e.g., ID 23), the API returns a 500 Internal Server Error with the message _clone method called on non-object, leaking stack trace and internal code paths.

Affected Endpoint:

• DELETE /api/v1/settings/marketing/campaigns/{id}

Preconditions:

• Campaign with ID 23 does not exist in the system.

Steps to Reproduce:

1. Execute this curl command:

curl -X 'DELETE' \
  'http://<host>/api/v1/settings/marketing/campaigns/23' \
  -H 'accept: application/json' \
  -H 'Authorization: Bearer <access_token>'

2. Observe the response.

Actual Result:

{
  "message": "_clone method called on non-object",
  "exception": "Error",
  ...
}

Expected Result:

{
  "message": "Campaign with ID 23 not found.",
  "status": 404
}