Trying to create credentials auth with database sessions. I found an example on github, but I get an error and do not know how to resolve it. Getting

Cannot read properties of undefined (reading 'nextauth')

error, it tries to read

req.query.nextauth?.includes('callback') &&
  req.query.nextauth?.includes('credentials') &&
  req.method === 'POST'

Can anyone help me? Why I did not get any query on sign in?
Thanks.
P.S. Sorry for my English 🙂