Jira create_issue API is throwing exception whenever there us the keyword column_name in description field. Why does this occur and how to fix this?

Question

Auth_jira.create_issue(json_issue['fields'])

The above is jira API call. It is throwing exception whenever there is the keyword column_name in description field of JSON.

Want create issue to work. Want to know if anyone faced same issue and what is the cause of this occurring too.