Deserialization error. permission matching query does not exits

I am trying to deploy my django website to heroku and I get this error whenever I run the command heroku run python loaddata project_dump.json. Please help me. This is my github repo of the project GitHub - hainhtat/carzone-github . This is the error.

Hi @hainhtat, I may be a bit late to the party but the problem seems to be right here:

One of those permissions don’t seem to exist in your database and Django therefore can’t properly load the data. This may be a starting point?