At the first i created post with body:
{
"title": "",
"text": "",
"tags": ["sad", "asjkldss", ""],
"imageURL": ""
}
title and text is unique and their index save in mongobd.
Than i changed body
{
"title": "",
"description": "",
"tags": ["sad", "asjkldss", ""],
"imageURL": ""
}
And i needed to delete unique saved index and it's working. i deleted in mongoDB compass